On Wed, 2024-03-27 at 16:23 +0300, Muhammet Kurtoğlu wrote: > Hi we want to upgrade from centos 6.8 to 6.10. > We have postgresql 9.4 with postgis . > in new patch will postgresql 9.4 can work without problem. If you rebuild all the indexes on string expressions, it may work. But certainly not without a problem. The versions alone are a problem. Yours, Laurenz Albe