Fission Release Notes

Fission 2.8.5Full Support for MacOS 14

Released on October 2, 2023

  • Full Support for MacOS 14 (Sonoma)
    Fission now has full compatibility with MacOS 14 (Sonoma), with no known issues.

  • Fission will now launch and run as expected on MacOS 14.1.

  • It’s now possible to control-click in the “Name” and “Code” fields of the “License” window, making it possible to copy and paste in data.

Fission 2.8.4Initial Support for MacOS 14

Released on September 8, 2023

  • Initial Support for MacOS 14 (Sonoma)
    Fission now has initial compatibility with the forthcoming MacOS 14 (Sonoma), with no known issues.

  • New “Permissions” Window
    The “Fission” menu now includes a new “Permissions” window, to easily enable the “Full Disk Access” permissions. These permissions can enhance performance when working with external drives.

  • Fission’s bundled version of FLAC has been updated to 1.4.2.

  • Tabbing through the “Insert Silence” option’s field now cycles between all four sections, fixing an issue for VoiceOver users.

  • The “Title” field in the Inspector’s “Tags” tab is no longer one pixel out of alignment.

  • Fission’s “About” box now shows the version of MacOS upon which it is currently running.

  • MacOS 11 or higher is now required.
    Fission now requires MacOS 11 (Big Sur) or higher. If you're still on 10.15 (or lower), be sure to see our Legacy Software page.

Fission 2.8.3Full Support for MacOS 13

Released on November 23, 2022

  • Full MacOS 13 (Ventura) Compatibility
    Fission now has full compatibility with MacOS 13 (Ventura), with no known issues.

  • On MacOS 13 (Ventura) and up, Fission’s “Preferences” window is now called “Settings”, to match the new MacOS convention.

  • If the “Check for Test Releases” hidden preference is enabled, checks will now run regardless of the status of the “Software Update” preference/setting.

Fission 2.8.2Initial Support for MacOS 13

Released on October 13, 2022

  • Initial MacOS 13 (Ventura) Compatibility
    Fission now has initial compatibility with MacOS 13 (Ventura), with no known issues.

  • The load time of large MP3s has been improved.

  • Export handling has been improved with certain FLAC files.

  • When the full version of Fission has been unlocked, the “License” window now subtly shows the application's version number.

  • Fussy typography improvements have been made to the mailing list sign-up window shown at the fifth launch for new users, as well as the “Release Notes” window shown at the first launch of a new version, which you might be looking at right now!

  • Software Update checks now occur only after the Welcome Window has been closed.

  • Fission now requires MacOS 10.15 (Catalina) or higher. If you're still on 10.14 (or lower), be sure to see our Legacy Software page.

Fission 2.8.1

Released on February 11, 2022

  • Fission now supports WAV files up to 4 GB in size.

  • Fission now reliably saves metadata for all WAV and AIFF files.

  • A problem where the “Insert Silence” option could lead to issues with saving has been corrected.

  • A rare issue where using dithering when exporting Apple Lossless files could result in distorted audio has been corrected.

Fission 2.8.0Full Support for MacOS 12

Released on December 17, 2021

  • Full Support for MacOS 12 (Monterey)
    Fission now has full compatibility with the MacOS 12 (Monterey).

  • Improved Resampler
    Fission's sample rate converter has been overhauled, and now provides greatly improved conversion quality.

  • Exporting to Apple Lossless, FLAC, AIFF, and WAV now offers advanced “Dithering” settings.

  • The Composer and Grouping tags are now supported for FLAC files.

  • To prevent issues with other applications loading AIFF files, Fission no longer preserves old HFS Type/Creator codes.

  • Fission now avoids preventing the Mac from sleeping, except when it's actively playing audio.

  • Fission now correctly shows the “Compilation” tag, even if it does not conform to specs.

  • The Export window no longer incorrectly throws an exception with certain custom formats and sample rates.

  • Clicking in the Export window no longer incorrectly shifts content visually.

  • A change made in Fission 2.7.1 that worked around a performance issue with the QuickLook feature in MacOS has been reverted. Unfortunately, that change led to issues with the Music and QuickTime Player apps. At present, QuickLook does not properly preview chapterized AAC files. This will require a fix from Apple.

  • Fission now requires MacOS 10.14 (Mojave) or higher. If you're still on 10.13 (or lower), be sure to see our Legacy Software page.

Fission 2.7.1Initial Support for MacOS 12

Released on September 2, 2021

  • Initial Support for MacOS 12 (Monterey)
    Fission now has initial compatibility with the forthcoming MacOS 12 (Monterey).

  • Enhancements to Fission's Built-In Updating
    Fission's updating code has been overhauled and improved. It is now based on Sparkle 1.26.0, with several customizations.

        • To avoid possible issues, Fission will no longer offer to “Install on Quit”. Automatic background updating has been removed as well, placing the user in charge of all updates.

        • The update interface has been improved, with several design and text enhancements.

        • Finally, the new “Skip for Now” button allows you to delay updating if desired.

    As always, we strongly recommend leaving the “Automatically check for updates” option enabled.

  • Fission's manual is now provided online, rather than being built in to the application. The application's “Help” menu has also been modified and streamlined, to get you assistance as quickly as possible.

  • Many debugging improvements have been made:

        • Available logs have been cleaned up.

        • Active logs are now listed in the logging files.

        • Machine details are no longer needlessly included in copied errors.

        • Logs are now activated with simple checkboxes.

        • When a log is activated, it will also collect recent crash logs, to better understand any issues.

        • A “Quit and Relaunch for Debugging” option has been added, accessed by pressing option in the Help menu.

        • Command-line debugging options have been added.

  • Fission's Start window has been made more intelligent. The Cmd-0 shortcut will now open the window if its closed, close it if it's open and in the foreground, or pull it forward if it's already open but in the background.

  • Support for some WAV codecs (pcm_s24le) has been improved.

  • Many improvements have been made to Fission's waveform display, to prevent issues where it could appear incorrectly.

  • Fission will no longer incorrectly convert PNG artwork to JPG on MacOS 11 (Big Sur).

  • Fission now works around a performance issue with the QuickLook feature in MacOS that could prevent a preview of chapterized audio files.

  • Fission now better handles disk errors, malformed recordings, and more.

  • The Quick Tour now properly supports the new “Speak items under the pointer” setting in MacOS 11 (Big Sur).

  • Improvements have been made for the Quick Tour to present better on small resolutions, using scrollbars to make all content accessible.

  • When Fission is unlocked by entering a valid license key, in addition to displaying an animation, it will now play a brief celebratory sound for visually impaired users.

  • Due to breaking changes in their API, the “Share to SoundCloud” integration has been removed from Fission.

  • It's now possible to access several relevant menu items while the initial Quick Tour is open.

  • The “Purchase” button in the License window now uses a better link to get to the Buy page.

  • The Update window's width has been tweaked, to handle longer titles.

  • Get Access to Test Builds
    Fission now features a new “Check for test releases” hidden preference. When active, you may receive notice of pre-release versions of the software, ahead of its wide release. If you're interested to test updates, you can turn this option on in the Debugging window (accessible by holding option while viewing the “Help” menu, then selecting “Quit and Relaunch for Debugging”).

  • Fission Is Now Available Exclusively via
    As of version 2.7.1, Fission is distributed exclusively via direct download and purchase from our site. It has been removed from the Mac App Store. See this page for more details.

Fission 2.7.0Full Support for MacOS 11

Released on December 7, 2020

  • Support for M Chip-Based Macs
    Fission is now a Universal app, offering support for the new M1 chip-based Macs.

  • Full MacOS 11 (Big Sur) Compatibility
    Fission now has full compatibility with MacOS 11 (Big Sur), with no known issues.

  • Fission now respects the user-specified system-wide “Accent” color on MacOS 10.14 (Mojave) and up. It also supports Big Sur's new “Multicolor” option, with an appropriate, app-specific gold.

  • Fission now shows sample rates in Hz, rather than kHz, for consistency across all Rogue Amoeba apps.

Fission 2.6.1

Released on November 6, 2020

  • An issue where toolbar icons would fail to appear properly on MacOS 10.13 (High Sierra) has been corrected.

  • File handling and associated error messages for Flac files have been improved.

Fission 2.6.0Initial Support for MacOS 11

Released on October 31, 2020

  • Support for MacOS 11 (Big Sur)
    Fission now has initial compatibility with the forthcoming MacOS 11 (Big Sur).

  • Opus Support
    Playback of Opus audio files is now supported in Fission.

  • Compatible formats now offer up sample rates up to 384 kHz.

  • Devices with changing channel counts now appear correctly in Fission's output device selector.

  • A crash that could occur when no audio devices were present has been fixed.

  • Closing one window will no longer pause other windows.

  • AIFF files larger than specs allow will now load.

  • If the selected audio playback device disappears, Fission will pause as always. However, it will also now correctly fall back to the system's default output, without pinwheeling.

  • Improvements have been made for chapterized files.

  • Alignment corrections have been made for slider knobs.

  • Error reporting in Fission's Batch Converter has been updated and improved.

  • An erroneous “DRCI” tag has been adjusted, to the correct “ICRD” tag. In addition, “esds” AAC_SBR audio object types are now correctly supported.

  • Adjustments for AAC files provide better compatibility with legacy software.

  • Issues with the PNG color profile have been corrected.

  • The keyboard shortcut for Fission's “Start” window has been updated from command-1 to command-0, for consistency with other Rogue Amoeba apps.

  • Fission's Preferences window now provides details on anonymous data usage.

  • Factory resetting Fission now correctly sets the theme to “Match System”.

  • Several in-app art assets have been corrected for Retina displays.

  • Fission now requires MacOS 10.13 (High Sierra) or higher. If you're still on 10.12 (or lower), be sure to see our Legacy Software page.

Fission 2.5.0

Released on October 29, 2019

  • Full MacOS 10.15 (Catalina) Support
    Fission now has full compatibility with MacOS 10.15 (Catalina).

  • Full Dark Mode Support
    Fission now offers full Dark Mode support, using the Dark theme in Dark Mode, and the Light theme in Light Mode. To adjust this setting to your liking, see Fission's Preferences window.

  • Waveform Improvements
    Several improvements have been made to waveform drawing.

  • Restored Dark Theme Functionality
    Recent updates reduced the usefulness of Fission's Dark theme. The theme has now been updated and improved.

  • A new wizard has been added to Fission, which includes a new “Quick Tour” to provide a helpful overview of the application, as well as update notes on the first launch of a new version.

Fission 2.4.6

Released on September 18, 2019

  • MacOS 10.15 (Catalina) Support
    Fission now has preliminary compatibility with MacOS 10.15 (Catalina).

  • Fission now requires MacOS 10.12 (Sierra) or higher. If you're still on 10.11 (or lower), be sure to see our Legacy Software page.

  • A new wizard has been added to Fission, which includes a new “Quick Tour” to provide a helpful overview of the application, as well as update notes on the first launch of a new version.

  • Fission's Help menu now includes a useful new Release Notes window, so you can see changes across all versions from right inside the app.

  • The look of messages displayed by Fission has been modernized.

  • The About box has been updated to provide additional version information in an easy-to-read fashion.

  • Fission's help manual has been improved and streamlined.

Fission 2.4.5

Released on December 19, 2018

  • Loading times have been improved for several audio formats.

  • Fission now supports very long AAC files.

  • A bug in transcoding the final samples of a file to AAC has been corrected.

  • An issue where Fission would erroneously complain about files changing on disk has been corrected.

  • The support form in Fission's Help menu has been updated.

Fission 2.4.4

Released on October 13, 2018

  • Fission can now better handle broken FLAC files.

  • A bug in WAVE tag reading has been corrected.

  • Several small memory leaks have been plugged.

  • Fission now requires MacOS 10.11 (El Capitan) or higher. If you're still on 10.10 (or lower), be sure to see our Legacy Software page.

Fission 2.4.3

Released on August 7, 2018

  • A hang which could occur when adding files together in Fission has been corrected.

  • Improved bitrate calculations now enable improved joining of some AAC compressed files, for better audio quality.

  • To workaround a QuickLook and QuickTime Player bug which could prevent chapterized files from playing as expected, Fission now converts progressive JPEG images to baseline JPEG.

  • The “Select Previous Clip” and “Select Next Clip” buttons now display properly, with no ironic clipping of the text itself.

  • Ringtone saving no longer incorrectly overwrites an existing ringtone when saving a second time with the same name.

  • Fission now has compatibility with MacOS 10.14 (Mojave).

Fission 2.4.2

Released on July 5, 2018

  • We've fixed a (thankfully) rare bug where ringtone saving or publishing to SoundCloud would cause data in the ~/Public folder to be incorrectly deleted.

  • Waveform display has been sped up, and its memory footprint has been reduced.

  • Fission can now handle damaged or fragmented MP4 files better than ever.

  • Fission's MP3 encoder (LAME) has been updated to version 3.100 and its FLAC encoder has been updated to version 1.3.2.

  • Myriad improvements to tags have been made. JPEGs are no longer incorrectly converted to PNG, and Fission now offers better handling Vorbis comments and QuickTime files with tags.

  • The Batch Converter now works as expected when in trial mode.

  • The License window has been updated and improved.

Fission 2.4.1

Released on September 15, 2017

  • We've fixed a serious regression where attempting to save split clips could fail.

Fission 2.4.0

Released on September 14, 2017

  • Fission's ability to save custom tones for iPhones (and other iOS devices) has been revamped for compatibility with iTunes 12.7.

  • Improvements have been made for compatibility with the new Apple File System (APFS).

  • Several fixes have been implemented to avoid rare crashes when resampling audio.

Fission 2.3.3

Released on August 7, 2017

  • An issue where crashes or audio corruption could occur due to downsampling has been fixed.

  • A hang which could occur when generating previews has been corrected.

Fission 2.3.2

Released on July 26, 2017

  • Fission now has support for 32-bit AIFF and WAV files, as well as 24-bit and 32-bit CAFF files.

  • Audio will now be heard sooner when outputting to certain problematic USB audio devices.

  • Several improvements have been made to Fission's high-efficiency AAC (HE-AAC) modes.

  • Many additional bug fixes have been made, including a fix for parsing rare AIFF files, ID3 tag reading improvements, and better handling of malformed files. Several rare crashes have also been prevented.

  • Fission now has preliminary compatibility with MacOS 10.13 (High Sierra). While we strongly recommend users stick with a fully supported version of MacOS for now, we know of no issues with Fission on High Sierra.

  • Fission now requires MacOS 10.10 (Yosemite) or higher. If you're still on 10.9, be sure to see our Legacy Software page.

Fission 2.3.1

Released on October 7, 2016

  • Fission now fully supports tabs on MacOS 10.12 (Sierra). Previous versions could crash when attempting to make new tabs, so be sure to update!

  • We've made optimizations throughout the app to make this the snappiest Fission yet. Waveform generation is now 20% faster, and AAC saving has been sped up as well.

  • Chapterized AAC and MP3 files now use the Album tag as the Title for the file.

  • Fission will automatically set a default title based on any file's name, and set Artwork from a video file's preview frame.

  • Save operations can now be cancelled if necessary.

  • AIFF/WAV limits are now checked before transcoding, so that malformed (overly long/large) AIFF and WAV files won't be created.

  • Compatibility with rare and poorly-formed AAC files has been improved.

  • Several small cosmetic improvements have been made, including fixes to the “Where” field, file name display in the Inspector, and the Comment field.

  • The “.m4b” and “.aif” extensions are now allowed by the Save panel.

Fission 2.3.0

Released on February 12, 2016

  • MP3 Chapters: Fission now supports saving chapter marks in MP3 files, as well as editing existing chapterized MP3s. MP3 chapters are handy for podcasters in particular.

  • Faster MP3 Encoding: MP3 encoding has been sped up, and is now 3x faster.

  • Damage Visualization: When Fission loads a damaged file, it will now visually display bad packets in the waveform.

  • The display of bitrates for AIFF and WAV files has been improved.

  • This update fixes a bug where partial M4A files, created when a recording issue occurred in Audio Hijack , failed to load.

  • An issue where certain lesser-used types of AAC files would not load properly has been corrected.

  • An audible glitch that could occasionally be heard at the end of playback of some audio files has been corrected.

  • A rare bug where Fission might crash with certain types of AIFF or WAV files has been fixed.

  • The software update mechanism (powered by Sparkle) now runs securely over HTTPS.

  • Other minor fixes and improvements have been made.

Fission 2.2.5

Released on September 17, 2015

  • This version improves file support for several different file types. First up, loading of AAC and Apple Lossless is much faster.

  • In addition, support for Apple Lossless files has been improved, with support for the rare 20-bit ALAC format.

  • Tag support for FLAC files has also been improved.

  • Rounding out our improved file support, chapterized AAC files are now better supported as well.

  • Fission is now fully certified for use with Mac OS X 10.11 (El Capitan).

  • Other minor fixes and improvements have been made.

  • Fission now requires Mac OS X 10.9 (Mavericks) or higher. If you're still on 10.8 (or lower), be sure to see our Legacy Software page.

Fission 2.2.4

Released on June 1, 2015

  • A crash was introduced in version 2.2.3, which could occur when importing a file. We've fixed this problem, so import away!

  • Speaking of importing, the engine for it has been fully updated to ffmpeg 2.6.2. Nifty!

  • Previously, certain FLAC files could cause Fission to crash. We did not like this, so we decided to squash that bug.

  • An issue where some MP4 files wouldn't open correctly has also been rectified.

  • Other minor fixes and improvements have been made.

Fission 2.2.3

Released on May 7, 2015

  • A minor problem with ALAC files has been corrected.

  • Some issues with @2x Retina art have been corrected.

  • A slew of other minor fixes and improvements have been made.

  • The importation engine was partially updated to ffmpeg 2.6.2.

Fission 2.2.2

Released on August 13, 2014

  • An emergency update, necessitated by immediate changes Apple has made to their Gatekeeper system, restores compatibility on Mac OS X 10.9.5 and higher.

  • A rare crash caused by closing a window has been fixed.

  • An Apple Lossless transcoding regression, triggered by files with 4096 packet size, has been fixed.

  • A hidden preference to disable the limit on Smart Splits is now available.

  • Logging in the Saving pipeline is now improved, and more detailed optional error reporting.

  • Fission is now more forgiving of slightly malformed FLAC files, enabling them to be imported without a problem.

  • Several other minor fixes and improvements have been made.

Fission 2.2.1

Released on June 4, 2014

  • An incompatibility with ALAC files generated by non-Apple applications like doubleTwist's "AirPlay Recorder" has been addressed.

  • Fission's Start Window is now prevented from showing if Fission was launched by opening a file.

  • We now have consistent bitrate options across all Rogue Amoeba apps, because consistencyness is next to godliness.

  • The way Fission saves ringtones has been updated for better compatibility, using the import folder. Mac App Store users should take note to delete duplicate files if they occur (this will depend on your iTunes import preferences).

  • The presentation of errors following a batch conversion has been improved.

  • Fission can now open the GSM, MS IMA, QT IMA, and CAF formats, as well as FLAC and ALAC files with non-standard containers or non-standard sample sizes.

  • Unnecessary gaps at the beginning of files when exporting FLAC or ALAC files are no more.

  • Several other minor fixes and improvements have been made.

Fission 2.2.0

Released on November 21, 2013

  • Fission can now import more audio formats, including support for MPEG layer 1 and 2, AIFF-C, Ogg Vorbis, Shorten, RealAudio, Windows Media Audio (WMA), AMR, QDesign Music, WavePack and Monkey's Audio. Newly accepted file extensions include.mpa,.mp1,.mp2,.ogg,.wv,.ape, and.shn.

  • Several crashes with the Batch Converter, introduced with backend changes made in Fission 2.1.4, are gone with version 2.2. Thanks, Woz!

  • The Start window is now always displayed at launch. After that, if the Start window is manually closed, we won't open it until the next launch.

  • Clicking anywhere in the artwork well now properly selects it.

  • Fission now reports file sizes in powers-of-ten, to match the Mac OS X Finder.

  • Outdated text references to QuickTime importing have been removed.

Fission 2.1.4

Released on October 14, 2013

  • Fission now offers full support for developer preview versions of Mac OS X 10.9 (Mavericks).

  • Fission is now a 64-bit application. That is literally twice as many bits as before. You probably won't notice much difference just yet, but this will enable performance gains in the future.

  • The QuickTime engine for opening file has been replaced with our own internal libav. Some extremely rare file formats may no longer be supported. Get in touch if you a format you use is missing.

  • Fission has an entirely new saving pipeline. Hopefully, you won't even notice, it will simply work. Oh, saving a ringtone from the Mac App Store version of Fission works a bit better, that's potentially noticeable.

  • Dragging a song from iTunes into the Mac App Store version of Fission should now work the first time. Previously, it only worked after two tries. Yes, really.

  • The License window has been overhauled, with HTML. Neat!

  • Chapters which contain multiple images now load images more logically (grabbing the first image in the chapter).

  • The app now has a hidden "Check for News" option, accessible by pressing option while in the Fission menu.

  • Fission's debugging window has been slimmed down.

  • Fission's now better handles excessively large AAC and Apple Lossless files which violate their respective specifications.

  • Many other small improvements have been made. They're not worth spelling out, but they're in there, and they're nice.

  • Fission now requires Mac OS X 10.7 or higher. If you're still on 10.6 (or lower), be sure to see our Legacy Software page.

Fission 2.1.3

Released on May 7, 2013

  • The name of the game is bug fixes. Version 2.1.3 removes almost two dozen incidences of stupidity, dumbness, and boneheadedness.

  • The Batch Converter has been updated to properly handle all Windows Media files, as well as ALAC-encoded CAF files, and more.

  • A problem where the App Store version of Fission could crash when inserting silence has been corrected.

  • Fission now handles.m4a_partial files, to recover AAC and ALAC recordings which have been corrupted by an unexpected termination.

  • Several additional VoiceOver improvements have been made, with labels on previously unlabeled controls. We're always working to improve this.

  • The Channels selector now properly appears for mono files (if Stereo is selected, the mono channel is simply cloned).

  • Clip tabs now always show the clip name.

  • An issue where some FLAC files wouldn't properly open has been corrected.

  • Fission's looping now properly updates when you change the selection.

  • Fission's time wells now properly update when undoing.

  • Fission Progress Indicator now properly remembers its position.

  • Fission now retains the Inspector state between launches and file opens.

  • The Batch Converter's Convert button now properly deactivates after a conversion finishes.

  • Keyboard shortcuts now loop through Inspector tabs.

  • Smart Split's "Insert Splits" button now properly accepts Return.

  • Artwork wells now illuminate when an image is hovered over them.

  • Removing or cropping a whole file no longer gives a dumb error.

  • Fission now better illustrates when a file's audio is clipping. Thanks, Kirk!

  • A drawing issue when moving the playhead backwards has been corrected.

  • Improvements have been made to prevent already-rare deadlocks and crashes in PTWorkerThread.

  • Fission now better handles UTF-8 in ID3 tags.

  • Simply moving the playhead no longer dirties a file.

  • Fission had a problem with overusing the CPU when all windows were closed. That problem has been eradicated.

Fission 2.1.2

Released on February 15, 2013

  • A problem some users saw with Exporting and Transcoding acting unresponsive, even as it worked, should now be gone. Fission is sorry if it seemed to be ignoring you while it worked.

  • The Start Window now remembers its state between files and launches. If you close it, it'll stay pretty well closed, and not annoy you so much. But please, don't you forget about it.

  • Fission now better remembers previously used settings for saving and exporting. Amnesia be gone!

  • Progress bars should now appear more reliably when exporting audio.

  • An issue where the Mac App Store version of Fission would fail to save to a previously-specified location is now fixed.

  • Several small issues related to re-encoding of audio have been corrected, preventing unnecessary re-encoding.

  • Fission is now better a reading in chapterized AAC files. It was already pretty great, to be sure, but now it's even better.

  • Several VoiceOver improvements have been made, with labels on previously unlabeled controls. We've still got more work to do, so watch for further updates, VoiceOver users!

  • A conflict with Many Tricks' window manager Moom, which caused the selection of split points to fail, has been handled.

  • Assorted rare crashes should now be even more rare, so rare that you might suspect they're gone entirely, which they are!

  • There are probably other improvements which we've forgotten. The best way to be sure you've got them is, of course, to update.

Fission 2.1.1

Released on January 7, 2013

  • Fission's Batch Converter now accepts folders (containing audio files), as well as individual files.

  • The Save panel now correctly remembers the last location to which files were saved.

  • An issue with chapterized AACs and very large image files has been corrected.

  • Fission now has a hidden preference, accessible via the Debugging window, to check for and prevent rare Normalization clipping.

  • Fission now features an HTML-based About box, for better Retina display.

  • Several other small bugs have been corrected.

  • An issue where attempting to Save (with Cmd-S or by choosing Save) would cause an error for users of the Mac App Store version has been corrected.

Fission 2.1.0

Released on November 2, 2012

  • Fission is now fully Retina-ready!

  • MP3 export now supports both constant bit rate (CBR) and variable bit rate (VBR).

  • AAC export now supports High Efficiency encoding (HE-AAC).

  • Files can now be dragged from iTunes into Fission's Start window.

  • Fission can now import audio,.wma,.avi,.mp4 files, and more.

  • A bug which could trigger an alert when closing an unsaved document has been fixed.

  • Album artwork now properly appears in the file's icon when available.

  • Fission now writes iTunes-style tags to AIFF files, non-standard though they may be!

  • Using "i" and "o" to create a selection has been improved, allowing playback while creating the selection.

  • Any file can now use the "Save As Chapterized AAC" option, regardless of its current file format or number of clips present.

  • Fission's Save dialogs now properly handle file extensions.

  • Files imported via QuickTime now only allow for an Export, to avoid overwriting the original file.

  • In addition to the iTunes dragging noted above, the Start window now takes drags of all document types Fission can open.

  • An issue where converting file formats erroneously produced CBR files (despite claiming to make VBR files) has been corrected.

  • A problem where the Undo menu item unhelpfully said "Undo Button" for several actions has been fixed.

  • The Start window no longer appears than immediately disappears on launch, when Fission is opening to a file. It also no longer immediately reappears when closed if no other windows are open.

  • The delete and backspace keys now both perform the same expected functions.

  • Issues caused by Fission overzealously writing its file icon, such as other applications not correctly changing the icon at a later point, have been removed.

  • Erroneous errors which could pop up when cancelling transcoding, exporting, or saving have been fixed.

  • When an error occurs during Batch Conversion, the Batch Converter continues with the rest of the files after the error dialog is dismissed.

  • Closing the Start window no longer immediately re-opens it.

  • "Remove & Split" has been renamed to "Remove and Split" in the Clip menu.

  • Support for several additional sample rates (88.2, 96, 176.4, 192 and 352.8 kHz) has been added to ALAC, FLAC, AIFF, and WAV.

  • Chapterized AAC files which must be converted now save to the 128 kbps 44.1 kHz stereo AAC format (instead of 192 kbps).

  • "Save As Chapterized AAC" is always available now, regardless of original file format or number of clips present.

  • Chapter images for Chapterized AAC files are now all padded to the size of the largest image.

  • An issue where closing an unsaved document in trial mode could still result in a corrupting save has been fixed (2.0.0a2).

  • "Export Selection" now features the keyboard shortcut Option-Command-E.

  • A new hidden preference for checking for Normalization Clipping has been added, accessible from the Debugging window.

  • Custom format selections for exporting and batch converting have been improved to prevent invalid formats.

  • Fission's accessibility for visually imparied users has been improved, correctly labeling several unlabeled elements.

  • Fission now supports the TLEN ID3 tag.

  • Fission now better handles malformed FLAC files, and supports more tag types in FLAC.

  • Fission can now read AAC 3gpp files.

  • Fission now correctly preserves creation dates when saving over old files.

Fission 2.0.0Paid Upgrade From Fission 1

Released on September 17, 2012

  • Fission's revamped interface makes it easier and more pleasant to use than ever.

  • It's now possible to open multiple audio files at once, in multiple windows.

  • Fission now has full editing support for FLAC and WAV files. MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV are now all supported for editing in Fission.

  • In addition to being saved losslessly in their original format, it's also possible to Export audio files to another format. MP3, AAC, Apple Lossless, FLAC, AIFF, and WAV are all supported for exporting.

  • The new Batch Converter makes it possible to convert multiple files to another format with just a few clicks.

  • SoundCloud support is now built right in to Fission, to make it a snap to share your files on the web.

  • Fission can now quickly save Chapterized AAC files, for creating enhanced podcasts.

  • Fission now uses our new manual system, with improved navigability. It is now also searchable.

  • Fission's icon has been updated for full Retina compatibility, and throughout the site. The app itself will be updated for Retina in the future.

  • We've also made too many other small improvements and fixes to list.

Fission 1.6.12

Released on May 17, 2012

  • A problem caused by Mac OS X 10.7.4 which led to Apple Lossless files not displaying properly has been corrected.

  • Fission now accepts new YELO- license keys.

  • Several other minor changes have been made.

Fission 1.6.11

Released on February 16, 2012

  • A crash which could occur with large files has fixed.

  • Fission now features a Developer News window, used for communicating urgent messages.

  • A graphical bug where the maximum value would not be drawn below zero, and the minimum values would not be drawn above zero, has been fixed.

  • Several small fixes to ID3 tag saving have been made.

  • The horizontal scrollbar now works properly on Mac OS X 10.7.

  • Price reverted to $32.

Fission 1.6.10

Released on September 29, 2010

  • An issue with the Revert command malfunctioning has been corrected.

Fission 1.6.9

Released on August 31, 2010

  • CPU usage during playback has been reduced.

  • 24-bit mono files are now properly supported.

  • The LAME MP3 engine, used for pasting/dropping files into an MP3 document, has been updated to 3.98.4

  • A long hang which could occur when closing large documents in certain circumstances has been fixed.

  • A crash caused by buggy QuickTime components failing to provide a file extension has been fixed.

  • A glitch occurring when fading to the end of a file has been corrected.

  • A bug caused by certain characters in the name of an iPhone ringtone has been fixed.

  • A bug where the waveform was not show correctly at certain zoom levels has been fixed.

Fission 1.6.8

Released on October 27, 2009

  • A problem with fades placed at the very end of MP3 and AAC files, introduced in version 1.6.7, has been corrected.

Fission 1.6.7

Released on October 22, 2009

  • Fission now requires Mac OS X 10.5 or later.

  • An extremely rare crash that could occur while pausing playback has been fixed.

  • A bug that could lead to audio corruption when applying fades in stereo AIFF, WAV, and CAF files has been corrected

  • A problem which would cause faded sections to not respect gain changes or normalizations in AIFF, WAV, and CAF files has been fixed.

Fission 1.6.6

Released on August 28, 2009

  • A serious crashing bug that could occur when a fade was set has been fixed.

Fission 1.6.5

Released on August 26, 2009

  • A Split at Playhead toolbar button is now included for easier splitting.

  • Files can now be dragged to Fission's Dock icon right from iTunes.

  • Fades are smoother, as they're applied directly to the waveform data in Apple Lossless, AIFF, WAV, and CAF files.

  • Fission now has full compatibility with Mac OS X 10.6 (Snow Leopard).

  • A bug where Fission would run a redundant spotlight query for metadata, resulting in decreased performance at startup, has been fixed.

  • NUL bytes are now removed from filenames when saving, fixing a bug which would truncate filenames of files with badly-formed titles.

  • Improved window flushing should reduce or fully prevent flicker in certain circumstances.

  • If Fission is hidden at startup, the Welcome Window is no longer improperly shown.

  • A bug where QuickTime would refuse to export to certain filenames containing colons has been worked around.

  • A bug with saving partial Apple Lossless frames has been fixed.

  • A bug where Fission would not allow aborting the save of a very long AAC file has been removed.

  • Fission no longer offers to install Smart Crash Reports.

  • When decoding errors from corrupt files occur, silence is now produced instead of garbage data.

  • A bug where custom registration window errors would display incorrectly has been fixed.

  • Fission now checks for updates weekly, instead of every 15 days.

  • Software update check now sends the processor architecture to the server.

Fission 1.6.2

Released on January 27, 2009

  • Looped playback is now properly gapless.

  • A bug with the new scrubbing indicator and waveform scrolling has been fixed.

  • Parsing of WAV files has been improved.

  • Runaway memory usage when using Smart Split or applying a cue sheet to very large files has been corrected.

  • CAF files can now be opened by dragging them to the Fission application icon.

  • The Shift-arrow key combination now behaves correctly in all cases.

  • A crash when opening a cue sheet and then canceling the open file sheet asking to locate the audio file has been fixed.

  • Registration information is now written to disk immediately when entered.

  • All preferences are now written to disk immediately after being changed.

  • The application name and version are now shown in the Registration window.

  • Several small bug fixes and memory leak fixes are included.

  • Normalization now works correctly on files with corrupt packets.

Fission 1.6.1

Released on November 18, 2008

  • Fixed a rare crash that could occur after intensive editing

  • Fixed a drawing-related crash on Tiger when using the I and O keys to create a selection

Fission 1.6.0

Released on October 27, 2008

  • Built-in iPhone ringtone saving

  • Better support for ID3v2.4 tags in MP3s

  • Added support for CAF (Core Audio Format) files

  • Added "Set Playhead" command

  • Added "Insert Silence" command

  • Can now save files with arbitrary file extensions

  • Added "Clip Number" field to inspector

  • Clicking in the timeline will move the playhead when using the Inspect tool

  • Pressing the return key in the editor moves the playhead to the beginning of the document

  • Now uses the Sparkle updater

  • UI tweaks

  • Fixed memory leaks

  • Added 512x512 icon for Leopard

  • No longer loses track/disc total tags in certain AAC files

  • Better handling of extremely large audio files

  • Better parsing of sample rate from Apple Lossless files

  • Fixed erroneous parsing of 32kHz AAC files

  • Improved calculation of the bitrate of AAC files

  • Detects and warns about certain improperly formed MP3 files

  • Fixed problem where gain slider would sometimes fail to appear when running in Spaces on Leopard

  • Made normalization and gain changes more accurate

  • Removed error when attempting to normalize silence

  • Clicking cancel when saving a cue sheet no longer saves the cue sheet anyway

  • Inspector keeps focus on the selected field when switching clips

  • Fixed bug which could sometimes lose tags when copy/pasting

  • Fixed bug which could sometimes cause erroneous spikes to appear at the beginning of MP3/AAC files

  • Playback now immediately follows audio output device changes

  • Fixed an endless progress panel occurring when using Smart Split on extremely large files

  • Now displays an error for malformed AIFF/WAV files instead of attempting to import them with QuickTime

  • Improved error reporting when loading MP3s

  • Pressing the arrow keys after pressing the I/O keys no longer cancels the selection operation

Fission 1.5.2

Released on October 18, 2007

  • 10.5 support

  • Reduced CPU usage during playback

  • Fixed a case where ID3 tags could be read incorrectly

  • Drag and drop saves no longer overwrite existing files

  • Gain button no longer appears when no selection exists

  • Fixed memory leak in autocomplete

  • Fixed certain Inspector fields not updating their value immediately

  • Open panel now allows selection of any file readable by QuickTime

  • Eliminated blip occurring after a fade at the very end of the file

  • Smart Split no longer gets slow or crashes when performing a large number of splits

  • Now shows the correct inspector for WAV files

  • Fixed some enabled but unconnected controls in the inspector for QuickTime imports

  • Minor bug fixes and GUI enhancements

Fission 1.5.1

Released on May 8, 2007

  • Moved autocomplete query to separate thread to eliminate slowdowns

  • Fixed audio glitch when cutting the end of an MP3 or AAC with automatic fades turned on

  • Fixed shift-click to extend the selection

  • Fixed nonfunctional gain slider in certain circumstances

  • Fixed I and O keyboard shortcuts

  • Save panel now grays out QuickTime controls when not selected

  • Adds a '1' to the end of the first clip when saving multiple clips with the same name

  • Cue Sheets now save Album Title where appropriate

Fission 1.5.0

Released on April 23, 2007

  • Supports Cut/Copy/Paste/Paste Into for audio

  • Can drag audio files into document to add them to the existing audio

  • Inline gain control of selections

  • Support for opening/applying/saving cue sheets

  • Added recent files popup to Welcome window

  • Fixed a case where AIFF/WAV tags could be written incorrectly

  • Fixed bug where demo limitation fades destroyed normalization applied to file

  • Added Zoom to Selection command

  • Throttled waveform drawing to avoid monopolizing graphics resources

  • Reorganized Inspector, added Next/Previous Clip buttons

  • Autocomplete in certain Inspector fields

  • Changed Cut to Remove, to better accommodate new Cut/Copy/Paste abilities

  • Changed audio device ordering in preferences to match System Preferences

  • Added Album Artist tag to Inspector

  • Normalization now stops just short of full volume to avoid triggering clipping warnings

  • Fixed keyboard loop in document window, particularly when using full keyboard access

  • No more unsaved changes warnings after saving Original Audio

  • The / character is now accepted in imported/exported filenames

  • Fixed case where normalization could cause clipping if left/right channel volumes differed significantly

  • Added native support for certain specialized AAC/ALAC files

Fission 1.1.1

Released on November 28, 2006

  • Improved AAC recording compatibility with iPod Shuffle 2G

  • Activated/Fixed Trash warning

  • Added a hidden preference to disable the smart split limiter

  • Now accepts unknown but QuickTime-readable files

Fission 1.1.0

Released on November 21, 2006

  • Native WAV support

  • Normalize command

  • Looped playback

  • Smart Split now has a "number of splits" text display

  • Document Summary shows original file's format and number of channels

  • Shift click extends selection

  • Clicking a clip's tab selects it even when not in inspect mode

  • Nicer save panel when saving imported audio

  • Improved VoiceOver support

  • Added I, O keyboard shortcuts for setting selection

  • Added Copy/Paste Info commands to manipulate all tags simultaneously

  • Revert is now much faster

  • Added Save Selection command

  • Added proxy icon in clip tabs which can be dragged directly into the Finder

  • Added keyboard shortcuts to move, expand, and contract the selection using arrow keys

  • Set Selection keyboard input is smarter

  • The Welcome window can be closed

  • Browse Files (from the Welcome window) is in the File menu

  • Smart Split has a Remove Preset options

  • Settings in save panel are now properly disabled for components that don't have any settings

  • Fade toolbar icons have been updated

  • The default save location is now the same as the original file

  • Fixed exporting to WMA using the Flip4Mac plugin

  • Preserves Bookmarkable attribute of AAC files

  • Aliases are selectable in open panel

  • Splits no longer spontaneously move when clicked

  • Minor hash marks fall on sane locations

  • Smart Split will refuse to create more than 100 splits

  • AIFF inspector only shows tags which AIFF supports

  • Document save/undo state no longer gets confused when undoing a complex sequence

  • Cutting across a split no longer joins the two clips

  • Left/right arrow keys move consistent amounts when playback is paused

  • No longer allows invalid file extensions when saving

Fission 1.0.0

Released on September 18, 2006

  • Initial release