For Houdini 20.0

From here you can install the add-on manually.

Drop VEX.sublime-package file into Data/Installed Packages

Example:
C:\Users\teared\AppData\Roaming\Sublime Text\Installed Packages\VEX.sublime-package

Then follow the rest of the readme, including optional setup sections.

Release 7.2.0

1. Updated for Houdini 20.0.
   https://www.sidefx.com/docs/houdini/news/20/vex.html

2. Show short function description in completions window.

3. New VEX functions added:

   chiang_fur
   gxnoised
   integratehoseksky
   slerpv
   typeid
   windingnumber
   windingnumber2d

   diag
   norm_1
   norm_fro
   norm_inf
   norm_max
   pinvert
   tr

   weightarrayblend
   weightarrayfromname
   weightarraynormalize
   weightarraythreshold

   volumeindexi
   volumeindexp
   volumeindexu
   volumesamplei
   volumesamplep
   volumesampleu
   volumetypeid

   distance_pointline
   distance_pointray
   distance_pointsegment

   chprim_clear
   chprim_destroykey
   chprim_end
   chprim_eval
   chprim_insertkey
   chprim_keycount
   chprim_keytimes
   chprim_keyvalues
   chprim_length
   chprim_setkeyaccel
   chprim_setkeyslope
   chprim_setkeyvalue
   chprim_start

   ocio_parsecolorspace
   ocio_transformview

   usd_addschemaattrib
   usd_applyapi

   Tip: to read about new functions quickly,
   copy the list into an empty Sublime Text document,
   set the VEX syntax, and check the documentation helpcards (Ctrl+Alt+D).

4. Fixed broken documentation links for functions in helpcards.