Fixes:

improved: IR loading time in TDM has been reduced.
fixed: IR not found errors. The extension matching is case sensitive. .L and .R extension are found now.
fixed: Similar did not work on User IRs. Now it compares to Audio Ease IRs only.
fixed: crash in VST version at session load when IRs can’t be found.
fixed: VST version did not show the additional channel volume controls in XL version.
fixed: Drag and Drop in VST (mainly Cubase and Nuendo) did not work.
improved: mono-mono instance of Altiverb can load any IR (also multi channel).
improved: loading of host plug-in presets is faster.
fixed: an issue in Pro Tools when track automated "Automation Preset Parms" aka Snapshots where used in conjunction with other parameters.
fixed: the installer would crash when it finds strange characters.
fixed: the interface for offline processing in Digital Performer is on the wrong position .
fixed: Pre delay could reset itself.
fixed: drag import of AIFF files would not work correctly in 64 bits versions.
fixed: hang when drag import split files.
fixed: pre delay of notes gets changed when tempo changes exists in a song.
several smaller fixes and improvements.

Known issues:

If you close a VST song while the Altiverb browser is open (and a category is selected) you may experience a crash. This is after song save though, it should be harmless. The same goes for host application quit, as that closes the song as well.
In some situations the IR Browser window does not open in Digital Performer.

- Look & Feel
Altiverb 7 looks and feels better. Often used controls all line up on the front, while the more exotic ones are in drawers beneath.

- Picture Browser
The IR library is more accessible then ever because of Altiverb's new visual browser: quicker loading, organize-by-size, and single click favorites.

- Keyword Searching
A powerful keyword search field makes you find items like 'metallic resonances' 'bed room', 'street slapback' or 'brick studio'

- Brightness
An algorithmic synthetic reverb layer that is tightly tailored to the impulse response provides a type of brightness that an EQ could never boost from a real world room.

News
- Keep your IR library up to date from within Altiverb. You can go into Altiverb's news tab, see what's new and proceed to download and install without restarting, all from within Altiverb 7.

- Similar
The room does work, but it is not quite the perfect one yet? Hit Similar and Altiverb will suggest similar sounding alternatives to the chosen impulse response.

- TDM simplified
In Altiverb 7 XL, the TDM chip management can be done from within Altiverb, using one handy pop-up menu. This feature does away with the long list of Altiverbs in the TDM plug-in popup. On top of that Altiverb 7 XL allows the loading of all IR types (down to mono in / mono out) into a stereo to quad instance of Altiverb.

- Total Recall Automation
Everything, including the impulse response choice is automatable in Altiverb 7. This means that you do not have to jump through hoops to fully automate Altiverb 7. And while there are still single-click snapshots, you do not need them to automate Altiverb. You can even read which IR is chosen in the automation curve.

- Drag and drop
Just drop any audio onto Altiverb 7 to use it as an impulse response: sweep recordings, several type claps or bangs, or any kind of experimental audio like crashing cars or piano chords. The drag and drop IR feature includes new make-up curves that allows the making of decent IRs using a handheld portable radio, or even slates.

- Chaos
Dial in a bit of chaotic modulation and not every hit will sound identical in the reverb. As a bonus tonal material will be dispersed which means that slightly out of tune notes will be covered up in the reverb tail.

- Interactive EQ curve
To operate the equalizers you can still use the familiar turning knobs. But Altiverb 7 adds an interactive equalizer curve that allows you to set al four bands including the widths of the parametric ones.

- And More...
Altiverb supports 64 bits. It has a new reverb gate, and straightforward pre-delay and attack parameters. Times can be set in note values locked to your song's tempo, and you have 10 times as much space in the stage positioner.

This update adds compatibility with Mac OS X 10.7 (Lion).

* [Mac] fixes a crash in opengl
* [ALL] dry/wet mix settings are restored correctly (after a bug introduced in 6.3.3).

* [ALL] update reduces memory footprint by 30 to 50 % !!
* [TDM] fixes loading problem on HD process board (non accel) systems
* [TDM] fixes a crashing bug on 96k on expansion chassis systems

* [VST] fixed latency compensation
* [TDM] The mono to stereo 1 second accell chip TDM plug-in could crash, as well as a similar surround instance. This is fixed.

Changes :

- Extensive optimization resulted in reduced CPU loads.
- Major rewrites have enhanced overall stability of Altiverb.
- When run in sessions higher than 48 kHz, when applying delays in early refs and tail errors in assembling the final IR could occur. This is fixed.
- Fixed problem in the naming of Altiverb presets.
- [PT] flatter cpu load within Pro Tools systems, reducing "CPU held off too long" -messages.
- [PT] fixed problem when using automation presets.
- [TDM] Improper load of settings removed.
- [PT PC] Altiverb TDM instances now map properly to Altiverb Regular counterparts when no XL authorization is found.
- [MAS] when "Reset All Parameters" is on, a song load does not delete all settings anymore.
- [AU] After "rescan IR folder" Altiverbs interface remains functioning properly.
- [PC] compatibility with Sequoia, Samplitude and Sonar improved.
- [PC Pyramix] silence at start of non-realtime mixdowns fixed.
- [PC Pyramix] surround mapping of output channels is now compatible.
- [PC Pyramix] integration with mascore completed.
- [VST] fixed mono-mono IR selection problem.

- [PT] Pro Tools 7.4.2, OS X 10.5.3 and Intel Mac compatible.
The RTAS version has been fixed to work with optimal performance in Mac OS X 10.5.3 and Pro Tools 7.4.2. Earlier there was the need to exclude some processor cores from RTAS processing, the playback engine can now be set to the number of processor cores available.

- [PT TDM] The TDM version has a fix to make reloading a session with several Altiverbs active reliable. Data traffic to and from the DSPs could be hampered during load of a session, especially with an Expansion Chassis (ethernet or Magma) is connected. The fix makes the traffic reliable, albeit on a chassis somewhat slower.

- [PT ]The RTAS version has been made better compatible for exchanges between PC and Mac, and between HD and LE systems. A session with a TDM version inserted will now open an RTAS instance automatically when transported to an LE system.

- [PT MAC] Stopped CFM support for Pro Tools

- [PC] compatibility with Sonar improved

- [PC] compatibility with pyramix improved, Altiverb 6 XL surround options too

- Removed several smaller problems

- Added possibility to turn off auto update checking


Important note for VST users using automation in VST sessions, as well as all Pyramix users:
Due to necessary improvements in the handling of VST automation data we have been unable to maintain automation in sessions made with Altiverb VST version 6.1.2 or before. Typically: gain knobs left at 0 dB in 6.1.2 or lower appear as +13.2 dB in Altiverb VST 6.2.0. This only goes for automation data. regular saved settings appear fine. Pyramix useres will see this in the loading of regular settings from sessions as well.

This release fixes:
[AU] Logic remembers settings now
[mac] updated de-installer
[VST] CPU spikes in automation presets are gone
[VST] conforms vst sdk 2.4
removed double trigger preset sound

[VST] Tails properly cleared when resuming playback from stopped state (Wavelab, Sequoia, Samplitude, and others).
[VST] Compatible with Cubase 4.
[VST] Remembers correctly its saved IR.
[VST] Fixed problem with certain V-STack/audio interface combinations.
[PT] some improvements to RTAS buffer system.

- [AU] Fixed a problem where Auval crashed attempting to validate ALtiverb5-Audio-Unit

- [ProTools] Compatible now with PT 7.2
- [ProTools] Fixed 192 kHz support
- [ProTools] Fixed crashing bug when using automation of snapshots
- [ProTools] Fixed some automation related problems

- [peak au] works in peak now
- [au] fixed initializing problem
- fixed read error while using CIRP files with IRI
- default picture in TV
- [vst] when opening a session with Altiverb where a preset is selected, loads the correct IR back
- [pt] fixed bug not loading settings correctly back

- fixed possible crash in engine breakdown and drawing waveform
- fixed crash problem in trigger preset player
- [pt] fixed help display
- [pt] fixed another instability
- fixed 2 wrong presets
- fixed small display bug in waveform display where the Direct pos was not drawn correctly
- Analyse IR works again

- solved problems with "load as Aux" and "load resets..." when loading presets and host settings
- solved problems with channel ordering in PT
- improved PT interface
- overall improvements
- some bug fixes

- Minimal system requirements are now Mac OS 10.3 (OS X Panther)
- Improved authorizing messages
- Altiverb 5 informs user when it cannot find IR's (impulse responses, the acoustic samples)
- Altiverb 5 now recognizes channel indicators in file names correct when file name uses an extension (i.e. myvenue.L.wav)
- Solved possible crashing bug when bouncing to disk with multiple chuncks availble
- Solved crashing bug in AS when selecting incompatible channel config

- greatly improved stability
- bugfixes in PT version
- added load as aux functionality
- added on/off switch for key trigger function of samples
- fixed problems with SDII & Gain Correction
- IRI files can't be overwritten by Analyse IR

- Special characters in file path for installer are allowed now (solves the error 5505 on install).
- Changed pictures & cursors for waterfall tool
- Waterfall view settings are now being retained
- Now using gain correction info in SDII and AV IR files
- In Cubase and Nuendo improved edit value display
- Improved speaker placer mono/stereo configurations
- Fixed badly recalled speaker positions

- iLok authorization, or challenge/response
- New Stage Positioning control allows you to place your source sound anywhere on stage.
- four band EQ, taylored for reverb.
- Internal level meters
- I/O controlls for front, rear, center bleed and lfe channels.
- Separate Gains and Delays for Direct, Early Ref and Tail
- Extensive CPU load control
- Room Size shifts room modes and resonances.
- Reverse reverb mode.
- Internal test samples can be triggered from the Mac's keyboard.
- VR movies, pictures, statistics, mic layouts etc, in the info screen.
- Automatable preset switching.
- Built in presets, user presets.
- Impulse Responses in unlimited levels.
- Three band damping
- AudioSuite format

- Altiverb 4.2.8 AudioUnit fixes a problem with initializing on a system with an incomplete set of IRs.

- Altiverb 4.2.7 problem with loading Altiverb 3 settings in all hosts.
- Altiverb 4.2.7 HTDM fixes a problem with plug-in shuffling.
- Altiverb 4.2.7 HTDM and RTAS Bypass is automatable.
- Altiverb 4.2.7 HTDM and RTAS improvements according to latest Digidesign specs.