New in Version 5.7.36:

Fixed:
-File naming tags were no longer working
-The “Always Show Toolbar Icon” checkbox was no longer working (Options> General tab)
-“Save to Default Folder” was no longer working

New in Version 5.7.34:

Fixed:
-0 byte issue
-Browser Crashes
-Wrong filename issues
-When clicking annotation links to another video, the throbber would spin indefinitely; drop down list would not open
-When using “Save Complete Youtube Page”, sometimes the MData folder would not save.
-When using “Save Complete Youtube Page”, the progress bar would not close.

New in Version 5.7.31:

Fixed:
-Videos with a decimal in the url (current time), could not be downloaded; throbber would spin indefinitely, list would not appear.
-FFmpeg would not run for Cnv14 (mp3) when using Save Complete YouTube Page.
-Fixed issue with installDialog in Linux.
-An extra space would be inserted after the [filename] tag even if there was no space inserted in Options.
-For some users, the update changelog page would open in the current window/tab causing problems. The changelog page now opens in a separate window.
-Fixed Issue 103 („nsIOService::NewChannel()”)

New in Version 5.7.29:

Fixed:
-Broken toolbar issue
-Wrong naming of video files
-Icon not appearing in some cases
-0 byte file issue when downloading
-Encryption/decryption issue
-In some situations tmp files were left after ffmpeg operation
-Fixed all "for each" cycles and changed the way indexes are utilized in these cycles (Issue 107)

New in Version 5.7.27:

Fixed 0 byte issue and some other download problems.

New in v5.7.26:

-e10s compatible

New in Version 5.7.23

Fixed:
-In some instances, the extension of an audio file would be saved in all caps “M4A”.
- In some instances, audio files were saved with two extensions “m4a.m4a”.
-In some instances CYS ignored the proper name formatting for audio files (saved in all small caps)
-In some instances, FFmpeg would run for the audio of non HD DASH videos (FFmpeg tab, option 2 with “Enable for audio” checkbox ticked).
-On videos where Cnv72 was not a DASH file (extracted), Cnv72 was not hidden from the list (option 3, FFmpeg tab)
-Under certain settings, ffmpeg would fail when using “Save to Default Folder”
-50fps videos were listed as 60fps

NOTE: This version is NOT e10s compatible yet

New in Version 5.7.20:
-FFmpeg is no longer needed to download DASH audio files.
-The format list will no longer reset when installing, moving or changing FFmpeg.
-There is now only one menu list, with or without FFmpeg installed, no hidden formats.
-FFmpeg tab added with new options
“Copy Link Location” is available for all audio formats.
-Option to show “dash” for DASH audio
-Added CM, Maksim Mukhammedov, and Ross Payton to the About window. Thanks for your support on Patreon :)

NOTE: This version is NOT e10s compatible yet

New in Version 5.6.70:

-e10s compatibility

To Install in Firefox 47 before it passes review:
-Set the preference "xpinstall.signatures.required" to "false" in "about:config". Read more here: https://cys.mantishub.com/view.php?id=68. Make sure to re-download it after it passes review.

New in Version v5.6.67:

-Added options to mux 192k audio (fmt22) with DASH videos (Ex: https://www.youtube.com/watch?v=SST61g3hnIs. You can enable this feature in Options> Audio tab.
-Re-designed the File Naming tab; added new tags and options
-Fixed subtitle downloads
-Added Movie Studio Zen, and Morten Thomsen to the About window. Thanks for your support on Patreon :)

New in Version 5.6.57:

-Fixed: Subtitles not downloading
-Added Chiron Ch, and Robert Surles to the About window. Thanks for your support on Patreon :)

New in Version 5.6.56:

Fixed:
-Downloading DASH videos resulted in 0 byte files and no muxing
-Comments were no longer being saved.
-Pale Moon was not downloading videos

Added:
-Henk Jonas, Clalat, Kristian Thorsen, Understackx, sdhh, Devin Holscher, Max Dahlenborg, Paul Cowan, Ned Riley, and Braythiner Guimaraes to the About window. Thanks for your support on Patreon!

To Install in Firefox 44 before it passes review:
Set the preference "xpinstall.signatures.required" to "false" in "about:config". Read more here: https://cys.mantishub.com/view.php?id=68

New in Version 5.6.53:

-Fixed: Vevo and similar videos were no longer downloading
-Fixed: Degraded OPUS audio qualtiy from re-encoding
-"Channel ID" added to File Naming tab
-Added Polish to subtitle language list

New in Version v5.6.49:

-Option to always show the CYS toolbar button or to hide on non-YT sites.
-Fixed Subtitles: Quotes and apostrophes now appear correctly

To Install in Firefox 43 before it passes review:
Set the preference "xpinstall.signatures.required" to "false" in "about:config". Read more here: https://cys.mantishub.com/view.php?id=68

New in Version 5.6.46:
-Added "Interlingue" to subtitle language list (Issue 66).

Fixed:
-Issue 69, for some users, VEVO and other videos resulted in 0 byte files (signature encoding/decoding)

Pale Moon Fixes:
-Issue 13, point 3 "If you drag the CYS toolbar button to the bottom right of the status bar, it will jump to the left of the screen when you scroll thru the drop down list."
-Related issue "status bar text length" bug (Pale Moon forums) http://forum.palemoon.org/viewtopic.php?f=46&t=7923&p=52173#p52173

New in Version 5.6.44 (from v5.6.32):

Fixed:
-Vevo and similar videos were no longer downloading (Issue 61)
-OPUS + VP9 feature was muxing Vorbis audio
- If “Ignore auto‐generated subtitles” checkbox was unticked, CYS ignored the proper English subtitles and only downloaded the auto‐generated subtitles.
- Fmt 299 Bug (Issue 53)

New:
-Periods are allowed again in filenames
-One option for English and one option for Spanish, downloads the appropriate subtitles
-Added Patreon link to the toolbar button context menu
-Added “Poke” to the About window (thanks for supporting us on Patreon!!)

Save Complete YouTube Page:
-CYS will save YT page with comments/replies viewed by the user
-Spinner added for adjusting max number of comments to save (up to 2,000)
-Added new option in Firefox right click menu “Save Comments Viewed to Last Project Folder” for users who continue to view comments while the video is downloading.
-Fixed: CYS no longer hangs when saving more than 350 comments

New in Version 5.6.32:
-Added option to mux OPUS audio with DASH Webm video (VP9) when available (Issue 35)
-Added new Audio tab in Options

Fixed:
-Zero byte files when downloading Vevo and other videos (Issue 45 and Issue 49)
-Missing ACC/M4A 250K, and OPUS 165K are now available again on some videos (Issue 42)

Remarks:
-Saving comment replies not supported for now
-Saving stats disabled for now

New in Version 5.6.26:

Fixed:
-Some file naming tags were not working
-Improperly aligned image in "Save Complete YouTube Page"
-Video description and comments were not being saved in “Save Complete YouTube Page”
-Occasionally, for DASH videos, the audio track was listed as downloading but didn’t actually start. Audio track is now queued up first, the video track second.
-Video download was hiding instead of audio when "Hide Audio File" option was checked

Remarks:
- Saving comment replies not supported for now
- Saving stats disabled for now

New in Version 5.6.17:
- Video description is now saved properly in "Save Complete YouTube Page"
- Minor cosmetic fixes

Remarks:
-Saving comment replies not supported for now
-Saving stats disabled for now

You can view the full list of changes (v5.6.3 – v5.6.17) here:
http://www.cys-audiovideodownloader.com/updated/version5617.html

New in Version 5.5.1:
- Smallest resolution DASH WebM format added (Fmt278)
- Fixed: Some videos failed to download due to code changes from the source website

Remarks:
- Due to the addition of new video formats, menu customizations will be reset
- Saving comment replies not supported for now
- Saving stats disabled for now

New in Version 5.4.5:
- Ultra-HD and Original VP9 WebM DASH formats added
- Two more 480p WebM DASH formats added (higher quality)
- Hidden preference "extensions.cys.menu.dropdown.dash480p.hqaudio" added, editable in about:config (needs browser restart...)
when true, 480p DASH videos will be saved with HQ audio (250Kb AAC for MP4, 192Kb Ogg for WebM)
when false, 480p DASH videos will be saved with medium quality audio (125Kb AAC for MP4, 128Kb Ogg for WebM)
- "Save Complete Page": comments can be saved again
- Theoretically up to 1000 comments available, with option to choose either most relevant or latest comments
- However, YT only provide up to 150 "most relevant", or up to 300+ (or 500+) "latest" comments
- Consequently, comments are now inserted into main page, no separate comment page is saved
- "all comments" line at top of comments section now also links to "all comments" page of video on YT
- Avatar, user name linking to user channel on YT, time of post, and number of replies (if any) displayed for every comment
- Latest or most relevant comments can be selected in "Save Complete" dialogue, or default set in Options
- "Save Complete Page": video image added, with link pointing to the video on YT
- Precise video resolution and audio bitrate info displayed in menus for DASH formats
- "Use Project Name as Filename When Saving to Last Project Folder” option added in Options
- CYS button set to auto-hide mode now actively revealed for Firefox 29+ "Customize" mode
- Saving comment avatars now optional (Save Complete window and Options)

Fixed:
- Some videos failed to download due to YT code changes
- Parsing from video pages failed due to YT code changes
-Works in channels again, detects all available formats of featured embedded video
- Rare file name collision: when saving audio for DASH video, it was possible for audio file to overwrite file with same name
- "Save Complete" dialogue now properly reads "save stats" preference
- On fresh install CYS now opens homepage, not update page


Changed:
- File naming logic refactored, streamlined to avoid any collision
- Format order changed, VP8 (old, non-DASH) WebM formats relocated to behind MP4 and VP9 WebM

Remark:
- Due to the addition of new video formats menu customizations will be reset
- Google+ comment replies not supported for now
- Saving stats disabled by recent YT changes

New in Version 5.3.0:
-Fixed: Australis support - toolbar icon was not inserted into Firefox 29 toolbar automatically, needed manual insertion
-Fixed: FFmpeg overwrite prompt - which should never happen.
The reason was a serious new bug/regression in the nsiFile interface in Firefox 29 that took a long time to track down.
The bug triggered a 0-byte ghost file to appear under certain circumstances.
- Fixed: video sidebar thumbnails

Remark:
-Saving stats disabled by recent YT changes
-Saving comments disabled by YT changes for now

New in Version 5.2.1:
-8 new formats added, all DASH video and audio formats supported now - small audio
downloads for OGG formats are here too.
-DASH video formats now marked by a dash sign in menus, also in lists in Options
-Toolbar button tooltip lists current FFmpeg background jobs, if any
-FFmpeg folder can be changed now in Options - current folder also displayed in tooltips for change button and FFmpeg label

Fixed:
-Extremely rare case of empty menu caused by lack of DASH format info despite indication
-Rare case of MP3 file name collision for long conversion jobs: for long input files, the time FFmpeg takes to scan the input (renamed to *.tmp) and start writing the output file can be substantial, which opened the door for CYS to create another MP3 File with the same name, ultimately colliding with the 1st
-Iconic menu conflicts caused by non-specific CSS code

Changed:
-Default setting is now for DASH audio files not to be hidden from Downloads
-Video/audio now saved with file extensions in lower case
-HD+video formats slightly rearranged based on video quality (DASH vs non-DASH MP4s)
-On update, CYS opens update-specific web page now
-Lots of dead code removed, file naming logic streamlined

Remark:
-Due to the new video formats, menu order customizations are re-set on installation
-Saving comments disabled by YT changes for now

New in Version 5.0.10:
-RTMPE detection: informational console message in debug mode for RTMPE-only streams

Fixed:
-Empty menu for restricted videos without DASH formats
-Regression: button was not disabled when no downloadable videos were found

Remark:
-Saving comments disabled by YT changes for now

New in Version 5.0.9:
- Full speed for DASH audio/video downloads, should saturate available bandwidth
- Default audio track for 480p MP4 DASH is 250Kbps AAC now
- "Copy link to clipboard" now copies both video and audio links for DASH videos
- Support for FFmpeg in portable installations
- Support for new AJAX UI data format

Fixed:
- lost&found high quality DASH audio links

Remark:
- Saving comments disabled by YT changes for now

New in Version 5.0.7:
-Saving statistics works again
-Fixed: Missing DASH audio formats could cause erroneous menu display, and muxing problems
-Fixed: Simple Options window styling was illegible with some dark themes

Remark:
-Saving comments disabled by YT changes for now

New in Version 5.0.6
-Preference in Options to hide/unhide FFmpeg console window on Windows - unticking this will enable Windows XP users to use CYS + FFmpeg without the .NET framework installed
-Save Complete dialog also displays video/audio file size, when available - i.e. after having open the detailed menu with file size display enabled
-Pop-up window informs users of the advantages of setting up FFmpeg for CYS
-For new DASH videos, preference in Options>Download tab to hide/unhide audio file in Download Manager -Audio files will still be deleted from disk on successful muxing of DASH videos, but audio downloads can be stopped/restarted now, if not hidden
-Streamlined file size lookup logic for DASH videos

Fixed:
-Save Complete window was empty/disabled for some videos
-"Save to Last Project Folder” location was not updated if video/audio was not saved with project
-If using the detailed menu, the first request for a video file could potentially fail
-Regression: CYS menu did not refresh properly on successful FFmpeg setup in Options, new window/restart was needed
-Quick menu did not properly differentiate between MP4V and DASH MP4
-Thumbnails on saved complete pages were broken

Remark:
-Saving stats and comments disabled by YT changes for now

New in Version 5.0.4:
-Full, completely transparent support for all new adaptive streaming (DASH) video formats:
-Without FFmpeg installed, DASH videos download as provided, as video-only MP4V files
-With FFmpeg installed, DASH videos download as MP4 complete with audio, with a single click
-Thanks to DASH, audio conversions are much faster (download size is usually much smaller)
-CBR AAC/M4A formats added to conversion options (no transcoding involved...)
-Order of audio extraction formats in detailed menu now matches that in quick menu

Fixed:
-Some videos would not download due to YT code change
-Error message in console due to deprecated status-bar in Firefox

Changed:
-Info cache only reset if prefs changed on closing Options window
-Improved video identification logic in cache, providing improved performance on page load

Remark:
-Saving stats and comments disabled by YT changes for now
-Due to the introduction of new video formats, menu order customizations are reset on installation
-Latest FFmpeg version needed for muxing DASH video and audio, please, update your FFmpeg
-DASH formats are not (yet?) provided for some old, barely watched videos

New in Version 4.4.4:
-YT code update (some videos were not downloading)
-YT's annoying "play" character filtered from file names

New in Version 4.4.2:
-YouTube code update + bug fix