Instant On has been updated to version 5.0, with full support for capturing audio from sandboxed applications from the Mac App Store and other sources.
Airfoil Speakers can now remotely control playback in several new sources, including Pandoras Box, Musicality, Muse, and Muse Controller's Pandora player.
Airfoil Video Player can again capture from Netflix in full-screen mode, thanks to Silverlight 5 compatibility.
Remote control via Apple Remote and Keyspan remotes has been restored in Mac OS X 10.7 (Lion).
Airfoil and Airfoil Speakers now use Apple's open-sourced Apple Lossless encoder and decoder, respectively, for improved audio compression.
Pulling audio from input devices now uses the preferred stereo channels (as set in Audio MIDI Setup), instead of always using channels 1 & 2.
The extraneous On/Off checkbox in the Effects window has been removed.
A hidden Developer News window, to issue important alerts when required, is now included.
Hidden prefs are now available in the Debugging window.
A bug where iCloud could cause an output device to appear multiple times has been corrected.
Album art is now limited to 512x512 pixels, to save bandwidth and improve compatibility with some AirPlay devices that can't handle larger images.
Airfoil now falls back to the Default Audio Output Device if the currently active device disappears, working around an issue with HDMI-based Mac Minis.
A crash when receiving audio from Radium has been resolved.
Airfoil Video Player now offers a Main Window option in the Window menu.
A bug causing HTML video to display incorrectly has been fixed.
Several visually misaligned elements in the Preferences window have been corrected.
The lock icon is now properly shown at all times when a speaker requires a password.
AppleScript's "connect" option now uses the keychain password if it exists.
The Speaker Name field in Airfoil Speakers now validates properly.
Other assorted crashes, memory leaks, and bugs have been squashed.

Airfoil now properly captures audio from apps created with Fluid.
Airfoil's volume slider behavior has been improved, with new artwork and enhanced feedback via artwork.
Airfoil now disconnects from remote speakers upon sleeping, to prevent error messages on waking.
An issue where Airfoil could not launch an app because of quarantine, even though quarantine is disabled, has been corrected.
The unnecessary Interface Settings preferences have been removed.

A "Process Source" bug, where audio from some apps was not captured when Instant On was installed, has been corrected.
A "-1600" error, where connections to some AirPlay devices could fail, has been fixed.
The cursor is now hidden when Airfoil Video Player is in full-screen mode.
Airfoil now checks if a source app is quarantined by Mac OS X, and warns if so.

DVD playback in Airfoil Video Player has been restored on Mac OS X 10.7 (Lion).
Airfoil will now allow scrolling in the outputs list when enough outputs are available.
A warning is now shown when Spotify relaunches itself following an auto-update.
Airfoil can now properly capture audio from QuickTime plugins such as Flip4Mac on Lion.
The transmission of track metadata (such as album artwork) has been optimized, to help on weak or congested networks.
A bug where Airfoil's "Computer" speaker could interfere with iTunes' Airplay has been fixed.
Several other minor bugs have been fixed.

Instant On 4.1 now supports Mac OS X 10.7 (Lion), allowing for capture of all System Audio, as well as grabbing audio from already-running applications.
A bug where AppleScripts using the System Audio device would fail has been corrected.
Several assorted crashes and memory leaks have been fixed.

Instant On 4.0 now supports Mac OS X 10.7 (Lion), allowing for capture of all System Audio, as well as grabbing audio from already-running applications.
A bug where AppleScripts using the System Audio device would fail has been corrected.
Several assorted crashes and memory leaks have been fixed.

A severe crashing issue caused by a bug in Mac OS X 10.7 (Lion) has been worked around. This should prevent crashes on Lion.
Pulling audio from QuickTime Player and QuickTime-based sources now works correctly on Lion.
Airfoil Video Player now uses Perian v1.2.3.
Instant On on Mac OS X 10.6 has been updated to version 3.1, to fix an incompatibility with Google Talk. Lion support for Instant On is still pending.
DVD support in Airfoil Video Player is now properly disabled on Lion, pending further updates.
A rare crashing bug with hidden menubars has been corrected.
MuseController is now supported as a remote control source, and provides enhanced metadata as well.
The Radium remote control script has been updated (Requires the forthcoming Radium 2.8.2).

Airfoil Speakers can now properly remotely control playback in Radium, fixing an issue seen in the previous version.
Additional preliminary bug fixes for Mac OS X 10.7 (Lion) have been made, including Airfoil Video Player fixes, and Factory Reset functionality. Full Lion support is still forthcoming.
Airfoil Speakers now features statistics (by holding down the Option key when receiving).
Airfoil Speakers now features a Check for Update button in the Preferences window.
Airfoil now properly detects older licenses and offers upgrades.
Airfoil now properly detects Windows licenses and offers a cross-grade.
Airfoil now better handles source applications which can't be launched in multiple user sessions.
If System Audio isn't available, Airfoil won't switch the selected source to it at all.

Airfoil now has full support for third-party AirPlay devices.
Airfoil Speakers can now remotely control playback in several new sources, including Spotify, Rdio, and Radium.
Airfoil Speakers now has support for receiving audio from iTunes and iOS applications, via the AirPlay protocol.
Airfoil Speakers can now also receive audio from Radium on Mac OS X.
Volume sliders can now be adjusted using the mouse scroll wheel as well as the trackpad's two-finger scrolling.
Airfoil Speakers menubar icon has been updated.
When Airfoil automatically transmits at app launch, application sources will be launched in the foreground for immediate use.
When Instant On is not installed, Airfoil now immediately knows it must relaunch an already-open application.
When album art is not available from Airfoil, Airfoil Speakers now shows a screenshot on the remote machine's icon.
Airfoil Video Player's capture of fullscreen Flash content has been improved for enhanced reliability.
Airfoil Video Player now opts out of ClickToFlash.
AppleScript support for RadioShark tuning has been improved, fixing a potential crash.
A severe memory leak on Mac OS X 10.7 (Lion) has been fixed.
An Airfoil crash on Mac OS X 10.7 (Lion) when attempting to prevent idle sleep during playback has been fixed.
An Airfoil Speakers crash on Mac OS X 10.7 (Lion) when attempting to prevent idle sleep during playback has been fixed.
Remote control and track title applescripts will now be loaded from the Application Support folder, in addition to the Airfoil app bundle.
When relaunching Safari, Airfoil no longer incorrectly causes a second blank window to open.
Fixed a rare issue with runaway CPU usage when the source application frequently spawned command-line-tool subprocesses
A rare bug which could cause Airfoil to incorrectly appear as available to Airfoil Speakers even when it was no longer open has been fixed.
Airfoil Speakers must now be unlocked with an Airfoil license (this will happen automatically when receiving audio from an unlocked copy of Airfoil).
Airfoil Video Player's UI has been tightened up in minor ways.
All debuggers now use On/Off instead of multiple levels.

* The Instant On component has been updated to prevent a rare lock up.
* Airfoil now offers a Deselect All Speakers menu item.
* Airfoil Video Player has been updated for compatibility with Flash 10.2.
* Fullscreen playback in Airfoil Video Player's web mode has been rewritten for better performance on some hardware.
* Popup windows in Web mode are now blocked rather than taking over Airfoil Video Player.
* The size and location of Airfoil Video Player's main window is now saved across sessions.
* Screenshots destined for remote speakers like Airfoil Speakers Touch and Apple TV are now generated when the target application first produces audio.
* Performance of metadata updates sent to Airfoil Speakers has been improved.
* Airfoil's network load has been smoothed by throttling packet transmission.
* Airfoil now gathers anonymous statistics about the kinds and quantities of speakers in use.
* AppleScript now returns the proper volume level for the Computer speaker when linked to system volume.
* Applescript update: "applicationSource" sorting has been rolled back to return apps the way it did prior to Airfoil 4.0.1.
* A bug where silence might be transmitted when switching targets without Instant On installed has been corrected.
* To avoid confusing AirPort Express units, Airfoil no longer sends set-volume commands during its initial connection.
* A better error is now provided when a second copy of Airfoil attempts to connect to an in-use copy of Airfoil Speakers.
* A rare crash in remote control support caused by network errors has been fixed.
* Several rare crashes related to memory management issues have been fixed.
* An extremely rare bug that could result in incomplete data being sent over the network has been fixed.

* Instant On 3.0.1 fixes corrupt audio from Spotify, System Audio, and others, as well as curing memory leaks which could occur.
* The Install Extras window has been improved for easier use.
* Several memory leaks have been fixed.
* Playback of some QuickTime files has been improved in Airfoil Video Player.
* Playback in Airfoil Video Player is now synchronized with monitor refresh, to eliminate tearing.
* Airfoil Video Player now supports .dvdmedia packages, as well as other containers for VIDEO_TS folders.
* Airfoil Speaker's main window is now always shown on the first launch of version 4.x.
* Audio input devices with low sample rates now work correctly with Airfoil.
* SSME license keys now correctly prompt for an upgrade.
* The Source popup now shows a keyboard focus ring when appropriate.
* Airfoil no longer incorrectly accepts folders when dropped onto the main window.
* If Instant On is not installed, a useful error message is now shown when switching to System Audio during active transmission.
* Dragging local movies into Web mode now correctly switches to Local File mode for improved playback.
* A rare Airfoil Speakers crash has been fixed.
* Airfoil Speakers now properly prevents the computer from sleeping while it's receiving audio.
* Audio playback in Airfoil Speakers after switching audio output devices has been improved.

* A revamped interface makes Airfoil easier to use than ever!
* Airfoil Speakers can now initiate a connection to Airfoil - with one click, you can receive audio on a remote machine.
* Airfoil Speakers now offers remote control of some applications, enabling you to play, pause, skip forward, and skip back.
* Airfoil Speakers also features a greatly improved interface, showing track titles, album art and other metadata when available!
* Airfoil Video Player's new Web mode allows you to watch video from sites like Hulu, Netflix, and more, while playing their audio remotely and in sync.
* The updated Instant On component works better than ever to capture audio from running applications, as well as all System Audio.
* Airfoil now sends track titles, artwork, and other metadata to Apple TV and Airfoil Speakers.
* Audio from Google Chrome can now be transmitted by simply selecting Chrome as the source in Airfoil.
* Airfoil now supports additional applications via remote control, from Airfoil Speakers as well as Apple and Keyspan remotes.
* Airfoil Video Player's interface has also been cleaned up and improved.
* Airfoil will no longer incorrectly attempt to launch Airfoil Video Player from outside its own bundle.
* A rare issue that could prevent some speakers from appearing in Airfoil's window has been fixed.
* Many other small issues have been fixed.

* The Instant Hijack component has been updated to 2.2.8, to correct an issue where it would not install properly.
* Airfoil will now accept KUTO-prefixed license keys.

* Choosing the Dashboard application as a source now correctly pulls all audio from Dashboard.
* Pulling audio from certain sources, including Google Chrome, is much improved, with no more audio skips.
* Sync problems with Airfoil Speakers on poorly-performing networks are now improved.
* A race condition that could cause EyeTV video to not be properly synchronized has been corrected.
* A rare race condition in the hijacker that could cause an assertion failure has been fixed.

* A rare deadlock with Instant Hijack has been fixed, with Instant Hijack 2.2.7
* Other rare deadlocks in Airfoil have been fixed.
* Airfoil Video Player no longer incorrectly appears in the Applications section of the source popup.
* An erroneous 5406 error has been suppressed.
* Airfoil Speakers will now disconnect when its machine is sleeping, so it will be available to take new connections immediately upon wake.
* Overdrive on the Effects window gain control now works properly.
* Airfoil no longer delays sleep.

* Airfoil now has full support for Airfoil Speakers Touch running on the iPad
* The embedded Perian plugin, part of Airfoil Video Player, has been updated to version 1.2.1.
* Several other minor bugs have been fixed.

* Airfoil and EyeTV from Elgato now work great together - when transmitting audio from EyeTV, Airfoil will adjust the local video to play in sync with remote audio!
* Pulling audio from VMWare Fusion or Parallels Desktop is now much simpler - simply set Fusion or Desktop as the source in Airfoil's Source pop-up, and Airfoil will handle the rest.
* A bug where transmitting Front Row without Instant Hijack installed would fail silently, instead of presenting an error, has been fixed.

* Proper artwork is again sent to Airfoil Speakers Touch on the iPhone and iPod Touch.
* Volume changes are now synchronized in both directions between Airfoil and Airfoil Speakers on all platforms.
* The Instant Hijack component has been updated to version 2.2.6, curing a rarely-seen issue with excessive loggin in the kernel log.
* Volume levels now default to 75%, instead of 50%, across the board.
* A potential crash when quitting or disconnecting remote speakers during transmission has been corrected.
* Minor tweaks to several error messages have been made, including selecting Airfoil as its own source, and attempting to pull audio from a source in the Trash.
* Airfoil Speaker's volume slider is now enabled at all times.
* Airfoil Speaker's volume slider now syncs back to the Mac, and saves its settings between launches.
* Several other minor issues and bugs have been addressed.

* The Instant Hijack component has been updated to 2.2.5, which fixes a rare incompatibility with Adobe Version Cue.
* A bug where the balance slider was shifted all the way left for new users has been corrected.
* Minor tweaks to several error messages have been made.
* Airfoil now sends unfortunately Apple-compliant artwork to the forthcoming Airfoil Speakers Touch 1.0.1.

* Hijacking of Safari is now much more robust, for non-English systems and cases where Safari is already active.
* Pulling audio from Front Row now works as expected.
* All background processes, including those for such applications as VMWare and Parallels, will now appear when option-clicking the Source menu.
* The Instant Hijack component has been updated to 2.2.4 for improved compatibility.
* Error handling when switching sources while transmitting has been improved.
* If Instant Hijack is not installed, the Dashboard source now correctly prompts to install Instant Hijack, instead of just failing.
* Airfoil no longer incorrectly errors when transmitting a source which is already being hijacked by another Rogue Amoeba product.

* The Instant Hijack component, used to capture audio from already-running applications, has been updated to 2.2.3 to fix a crash with quicklookd that could occur on some machines running Mac OS X 10.6 (Snow Leopard).
* With the Instant Hijack component installed, hijacking of Safari, QuickTime, and other applications has been improved to not require quitting and relaunching.
* Airfoil now captures audio from sub-processes, improving hijacking of applications like Google Chrome.
* The Radio window, for use with Radioshark USB radios, has been updated and improved.
* Dashboard hijacking is now unified, so all audio from Dashboard is pulled in.
* Airfoil now has a preference for adjusting the local audio output device.
* VoiceOver accessibility support has been improved, as has keyboard navigation.
* The metadata image sent to Apple TV and Airfoil Speakers Touch is now delayed by a few seconds to capture the target application in a more useful state.
* The metadata image sent to Airfoil Speakers Touch is now periodically updated.
* A rare bug causing endless error messages to appear in relation to auto-transmitting has been corrected.
* If Soundflower is not installed, Airfoil now properly remembers the System Audio source when it requests an installation.
* Airfoil can now better detect broken Soundflower installs and offer to reinstall.
* Software update now includes anonymous data about appliaction sources.
* Airfoil Video Player now accepts drags from iTunes into an AVP window.
* Audio sources can now be switched while transmitting, without needing to dis- and re-connect.