Pro Tools is a multitrack recording/editing/mixing application.For details on CS releases read the corresponding read me files that ship with each application or search Answerbase for a specific software version. This record does not provide specific details on each release.08/xx/91 version 1.0 (ProDECK and ProEDIT - original apps)06/25/91 version 1.01 09/12/91 version 1.02 02/20/92 version 1.03 04/01/92 version 1.1 Added supt for up to 4 cards/interfaces06/25/92 version 1.12 xx/xx/xx version 1.15 03/26/93 version 2.0 (SW changed to "Pro Tools" and "DAE")xx/xx/xx version 2.01 xx/xx/xx version 2.02 08/18/93 version 2.03 06/20/94 version 2.5 (initial TDM release)08/03/94 version 2.51 11/28/94 version 3.0 (PTIII NuBus release)05/17/95 version 3.1 10/03/95 version 3.11 02/07/96 version 3.2 05/14/96 version 3.21 (PTIII-PCI release - PCI only)05/29/96 version 3.22 xx/xx/xx version 3.3 (bundled with AMIII for MC, supt by AVID)03/21/97 version 4.0 (NuBus & PCI, AudioSuite, dropped 442)04/14/97 version 4.0.1 09/24/97 version 4.1 (intro d24 card, dropped 68k support)11/03/97 version 3.4 (PT Free - promo 3.x, no CP/support)02/20/98 version 4.1.1 (dual d24 support added)06/23/98 version 4.2 (ProControl support added)09/25/98 version 4.3 (MIX card, drop NuBus PPC & ADAT I/O)04/14/99 version 4.3.1 (adds support for B&W G3)05/10/99 version 4.3.1(T) (for Toolbox 2.0 - requires AMIII)06/01/99 version 4.3.2 (fixed the "Type 0 MIDI Track" crash)06/01/99 version 4.3.3b1 (fixed MIDI issue for Bruno/Reso)11/19/99 version 5.0 (dropped PT Project engine)12/16/99 version 5.0 AV (for AVoption)05/30/00 version 5.0.1 (Win98, bug fixes, CP change to Serial #)09/12/00 v 5.0.1cs1 (fixes Region/Fade loss)09/12/00 v 5.0.1cs6 (fixes slow launch)01/26/01 version 5.1 (surround, beat detect, C|24, drop PTIII)01/26/01 v 5.1cs2 (fixes slow load with large OMS setup)05/03/01 version 5.1U (first Unity release)06/15/01 version 5.1.106/15/01 v 5.1.1cs1 (attempt to fix Time Stamp problem)06/15/01 v 5.1.1cs2 (SoundMaster ATOM fix)06/15/01 v 5.1.1cs3 (MC for CB SR, breaks Soundmaster )08/01/01 v 5.1Ucs1 (bug fix for Unity)08/xx/01 v 5.1.1cs4 (SDII Timestamp fix)08/xx/01 v 5.1.1cs5 (TDM Mac only - MC & Airport fixes)09/13/01 version 5.2 (DigiStudios release)11/09/01 version 5.1.3 (second interop release - Unity + DT)01/17/02 version 5.3 (Pro Tools|HD)06/06/02 version 5.3.1 (HD)