Mayan EDMS version 4.7 will use PostgreSQL version 14.11 from the current PostgreSQL 13.14. PostgreSQL binary files are not compatible between major versions. The upgrade process requires performing an SQL dump of the database and then restoring the SQL file into the new PostgreSQL version. This is very similar to the backup and restore process to be expected of production installations of Mayan EDMS.
Users not wanting to perform the database conversion will need to pin the PostgreSQL Docker image tag in the .env files by setting MAYAN_DOCKER_POSTGRESQL_TAG to 13.14-alpine.
This can be appended to the end of the .env file.
MAYAN_DOCKER_POSTGRESQL_TAG=13.14-alpine
PostgreSQL version will continue to receive updated until November 13, 2025, so there is no rush to perform the conversion.