@@ -13,7 +13,21 @@ This is an R-Tree implementation using GiST for spherical objects like
1313spherical points and spherical circles with useful functions and operators.
1414
1515NOTICE:
16- This version will work only with PostgreSQL version 9.6 and above.
16+ This version will work only with PostgreSQL version 10 and above.
17+
18+ VERSIONING:
19+
20+ Stable versions are marked with tags containing version numbers in the GitHub
21+ repository at https://github.com/postgrespro/pgsphere/. Each stable version
22+ contains upgrade scripts for updating an existing installation to the latest
23+ version using the ALTER EXTENSION UPDATE TO command.
24+
25+ The master branch is intended for development purposes and may contain
26+ intermediate changes. The current version in the master branch and its
27+ functionality are subject to change.
28+
29+ Note: The master branch should not be used in production because the upgrade
30+ scripts and the current version number may be changed.
1731
1832INSTALLATION:
1933
