E.172. Release 7.4.5
              
            
            
              
                ![[Note]](images/note.png) 
                
                  Release Date
                
               
              
             
            
              This release contains one serious bug fix over 7.4.4. For
              information about new features in the 7.4 major release, see
              Section E.177, « Release
              7.4 ».
            
            
              
                
                  E.172.1. Migration to Version 7.4.5
                
              
              
                A dump/restore is not required for those running 7.4.X.
              
             
            
              
                
                  E.172.2. Changes
                
              
              
                
                  - 
                    
                      Repair possible crash during concurrent B-tree index
                      insertions
                     
                      This patch fixes a rare case in which concurrent
                      insertions into a B-tree index could result in a server
                      panic. No permanent damage would result, but it's still
                      worth a re-release. The bug does not exist in pre-7.4
                      releases.