Version 1.22.0 – (Released on January 23, 2025)  
NEW:  
- Added full option for `group_flush` configuration option.  

CHANGES:  
- Switched default value for `group_flush` to `scan`.  
- Replaced all `error_log()` calls with internal `log()` helper.  
- Log all messages when debug mode is enabled.  
- Improved performance of analytics API requests.  

FIXES:  
- Fixed rare `TypeError` in `Diagnostics::redisVersion()`.  
- Fixed scheme detection for `wp redis cli` command.  
- Fixed inverted multi/pipeline modes.  
- Fixed OpenTelemetry tracer integration.  
- Avoided cloning connection when computing metrics.  

REMOVED:  
- Removed deprecated `$RedisCachePro` global.  

========================================  
Version 1.21.3 – (Released on October 29, 2024)  
CHANGES:  
- Allowed more cache key separators in Relay prefix health check.  

FIXES:  
- Fixed changelog not being accessible when `DISALLOW_FILE_MODS` is set.  
- Avoided rare notice when using Query Monitor.  
- Removed debug call.  

========================================  
Version 1.21.2 – (Released on July 18, 2024)  
NEW:  
- Added support for setting strict mode using `OBJECTCACHE_STRICT` environment variable.  

CHANGES:  
- Strict mode is no longer enabled when a prefix is set.  

FIXES:  
- Fixed connection error when no Sentinel replicas are available.  

========================================  
Version 1.21.1 – (Released on May 21, 2024)  
FIXES:  
- Fixed rare type mismatch during admin lifecycle execution.  

========================================  
Version 1.21.0 – (Released on May 8, 2024)  
NEW:  
- Added Redis cluster support for Relay.  
- Added `ErrorLogContextLogger` for easier debugging.  
- Added `Relay*Connection::keysInMemory()` helpers.  

CHANGES:  
- Enabled strict mode by default.  
- Added support for `WC_SESSION_CACHE_GROUP` constant.  
- Implemented decorrelated jitter backoff algorithm for connection attempts.  
- Checked `wp_is_file_mod_allowed('object_cache_dropin')` before deleting drop-in automatically.  
- Improved latency widget content for cluster connections.  
- Used configured logger and log levels for plugin logging.  
- Resolved PHP 8.4 deprecation notices.  

FIXES:  
- Avoided rare fatal error in `Configuration::safelyFrom()`.  
- Fixed `objectcache_allow_dropin_mod` filter.