I've compiled some versions of the latest TPT, since there hasn't been a new version or beta in a while. These aren't official betas, but they are compiled as if they were. They are marked as version 91.0.323 and compiled with --beta so you can't publish saves (they wouldn't load in normal TPT anyway).

Download links:
Windows
OS X
Linux 32 bit
Linux 64 bit

Fixed:
Fix bugs with negative tmp SING
Make sure ELEC dies in ELEC+NEUT reaction
Fix really fast photons moving through VOID
Fix fast particles skipping over DESTROYALL wall
Fix crash with PIPE+PRTI+invalid values
Fix bugs creating multiple stickmen, fix stickmen spawning bugs
Fix empty holes in stamp browser when deleting stamps
Fix stamp and save thumbnails occasionally getting mixed up
Fix save list not refreshing when deleting multiple saves
Fix background windows sometimes fading to black
Fix "open data folder" on Windows
Fix mouse coordinates being 0,0 on startup
Fix Rounding errors in ctrl+x
Fix Rounding errors with large integers in the console
Fix error when unregistering lua functions on the first frame
Fix some lua crashes when using invalid arguments
Allow lua mousepress events to cancel drawing
Fix sim.gravMap
Fixed all warnings when compiling

Changed:
Make a few elements slightly more efficient
Fix FRZZ/FRZW (didn't work as intended)
Less stacking during fusion
Tons of other minor changes to elements that haven't been listed
Mouse drawing is automatically canceled when moving in / out of the zoom window
Tooltips for the save upload button and interface have been made more clear
Better .desktop file on Linux
Better icon on Linux
Lua logs fade out individually and don't reappear

Added:
Allow PSTN movement amount to be set by PSTN temperature
New loop edge mode
Edge mode now saved in saves
Add textbox in save / stamp browsers to jump to any page
Ability to publish saves in the browser without resaving
New lua functions: sim.clearRect (replicates ctrl+x), sim.framerender (simulates x number of frames), sim.photons (photon equivalent of sim.pmap)
pavg[0] and pavg[1] can be set through PROP and the console
Reimplement tpt.setdebug

Other changes due to the fact that i'm the one compiling:
Fix fullscreen mode on macs (future official versions won't have this because Simon is lazy :P)
I compiled with lua5.2. Older versions of tptmp and the script manager will error, I can't remember if I have already updated them since adding lua5.2 support.
Maybe random rounding errors in the simulation, different ones than what Simons have though (shouldn't really be a problem).