I updated the first post with a changelog for 92.0. I copied all lines that seemed somewhat important from here: https://starcatcher.us/TPT/

TPT 92.0 is ready to be release, I'm just waiting on @Simon to update the renderer (the thing on the server that renders save thumbnails). It needs to be able to render the new elements before release, or else thumbnails would be blank.

Here's a copy of the changelog:
Added:
New Element: POLO (polonium). Decays into NEUT rapidly unless cooled
New Element: HEAC (rapid heat conductor)
New Element: SAWD (sawdust). Floats on water
New Element: LSNS (life sensor)
New Element: RFRG (refrigerant). Heats up and liquifies under pressure
Now compiled with the Microsoft Visual Studio Compiler (MSVC)
This should improve FPS by a noticeable amount (10-20%), and decrease the size by 40%
Add multiple undo and redo support (defaults to 5 undo states)
Add warning messages when certain words are found in comments ("stolen", asking for votes, swearing)
Add logging inside saves which remembers which other saves material was taken from
Add sim.brush lua function, an iterator which returns a list of brush locations
Add sim.TOOL_MIX to Lua API
Add new PhotonReflectWavelengths property, add reflection color for POLO
sim.signs.delete() api function

Changed:
CRAY copies own .life to the particles it creates
CRAY can create FILT with .tmp already set
Make FRAY and INVS customizable via .tmp
Add two new FILT modes, red/blue shift based only on ctype
Double the preciseness of photon refracting
CRMC now slightly scatters photons when reflecting
BGLA now scatters photons
PQRT scatters photons like QRTZ does
C5 frequency doubling, id:2087410
Make GRAV prettier
CRAY(LIGH) defaults to LIGH with .life 30
Disable STKM controls when pasting saves
Make sure STKM / other particle graphics aren't drawn over the menus
Pressure, air velocity, and ambient heat are now saved in saves
Proper ctrl+backspace support (doesn't delete entire textbox)
Add error message when attempting to login using an email address
Sign justification is now called pointer alignment, new sign icons
Differentiate between created date / updated date in save preview
Workaround for incorrect 404 save
Typo fixes for BRMT and PLUT descriptions, gases menusection

Fixed:
Fix some piston bugs that could cause it to not push as far as it can
Fix PHOT/PLSM not following the correct heat scale in heat view
Fix issue with air sim that could cause massive lag after leaving TPT idle for 20 minutes
Fix floating point celcius in console: !set temp all 0.8C
Fix downvote button not being reset when opening a local save
Fix deco colors being 1 R/G/B value less than they should be
Fix favorites being able to be added multiple times
Fix issue where non-scrollable menus are stuck "scrolled"
Fix some issues with particle debugging
Fix crash with very high speed photons
Fix crash when PROT hits SPRK with no ctype
Fix potential crashes when loading or saving certain invalid saves
Fix crash when doing Textbox.new()
Fix high hexadecimal numbers working when setting type with PROP tool (can cause crashes)
Fix cache value from lua graphics function being ignored

@docRoboRobert (View Post)
It is waiting on Simon to updatethe renderer. He said he would do it this weekend

92.0 is now released. Note that the update prompt / download page will say it is 92.1 for now. There was a bug on the website, my fault ..., which prevents releasing versions where the minor number is 0