Sequitur 2.1 Release Notes

Important fix to file IO that prevents data corruption.
Dissolve filter could cause crash when operating on notes with extremely short durations. (thanks to David Shipman)
New tool bar ARP Curves (select Tool Bars->Show->ARP Curves in a track window) contains new tools for shaping events. Each tool is documented in the Tool Guide, but in general they are used to shape control change, pitch bend, tempo and velocity events (and notes if you're feeling creative), and the curve can be altered by pressing the 'z' and 'x' keys.
All curve tools make use of a new tool seed for drawing bezier curves; see section 6.3.2. of the user's guide for an explanation of the Curve seed.
New menu items in the Song window: Edit->Expand Marked Range and Edit->Contract Marked Range. These items are only active if the loop markers are on. The Expand command shifts everything from the left marker to the end of the song over by the total loop range. The Contract command deletes the area within the loop markers, then shifts everything after the right marker left by the total loop range. If no tracks are selected, the entire song is shifted. Otherwise, only the selected tracks are affected.
System exclusive commands can now be added to devices. There is no user interface for doing so, although developer tools are provided here. Currently, the E-mu Proteus 2000 and E-mu EOS devices include sysex commands for controlling the FX.
A new page has been added to the Preferences window, Views. This page lets you set the height for the various views in Sequitur, such as pitch bend, control change, etc.
Multiple instances of the same MIDI device are given unique names. For example, two instances of SynC Modular will be named "SynC Modular 1" and "SynC Modular 2" so they can be accessed independently. (thanks to David Shipman)
In the track window, holding down the CTRL key now accesses an alternate set of active tools. (Assign these tools by holding down the CTRL key and clicking on the desired tool)
Right mouse button can now be mapped to any tool. (thanks to David Shipman)
The Vaccine.P and Vaccine.V filters have been deprecated (although they are still available here). They are replaced by the Vaccine filter. In addition to injecting a motion into the pitch and velocity of notes, this new filter can inject it into control change, pitch bend, tempo change and channel pressure events. The new tool Broken Down Line uses this filter.
Note to filter developers: The filter API has changed. You will need to recompile your filters.

Sequitur 2.0 Release Notes

Sequitur 2.0 includes an extensive set of new features over previous versions. If you're familiar with past incarnations, here are some highlights:

Tools are now completely user-modifiable and extensible, and have extensive possibilities for interacting with MIDI data.
Filters can now be created by users with no C++ knowledge, via the multi filter.
Device definitions can be created for any of your MIDI devices.
New 'motions' concept abstracts pitch, velocity and controller information, helping to easily experiment with new dynamics and melodies.
A new strip view, the Bank / Program Change, makes it easy to work with multiple banks on your synthesizer.
The height of tracks in the song window can be changed, and their phrases can be labeled.
Track windows can switch between different tracks, or even operate on multiple tracks simultaneously.
Many new and improved filters.