Bugs happen. As a result, bugfix updates also happen. Kodi 15.2 is the second such release since version 15.0 of the app formerly known as XBMC went stable, and it tackles quite a list of issues. Head's up—all of them are very specific.
On several Android devices that used an Amlogic chipset, Kodi 15 only showed a zoomed in display or only used part of the screen. 15.2 addresses this.
Some users lost video after fast-forwarding. This, too, has been squared away.
15.2 also fixes refresh-rate switching on Android devices like the Nexus Player and NVIDIA SHIELD TV.
Other fixes address non-DVB and MicroDVD subtitles, incompatible MySQL queries, PulseAudo on Linux, default sorting for songs over UPnP, volume adjustment for Xbox controllers, and the time format when setting regions.
This just names a few. For the complete rundown, take a look at the source link below or view the GitHub milestones.