BackAnthropic·Claude APIWe launched a beta version of the Ruby SDKWednesday, 9 April 2025Official notes on platform.claude.comFull release notesWe launched a beta version of the Ruby SDK.Older · Mar 31, 2025Our Java SDK has moved from beta to its first stable releaseNewer · May 1, 2025Cache control must now be specified directly in the parent content block of tool_result and document.source