Hello, this release contains the following changes:

Added:

• Two new permissions: invseeplusplus.exempt.invsee and
  invseeplusplus.exempt.endersee. These permissions make it so that the owner of these permissions can't be spectated using /invsee and /endersee respectively.
• The 'master' permission invseeplusplus.* contains these two new permissions as children.

Fixed:

• A bug where closing a spectator inventory would update the target player's lastPlayed (and on Paper LastSeen) timestamps.

Removed:

• Support for Minecraft 1.15-1.15.1 (1.15.2 is still supported)
• Support for Minecraft 1.16-1.16.4 (1.16.5 is still supported)

Changed:

• Api changes to reflect the new reasons why creating a spectator inventory could fail.
• Api changes to the uuid-resolve and name-resolve code.

Merry Christmas!