Update release notes for the 1.15.3, 2.0.2 and 2.1.1 patch releases.
Update release notes for the 1.15.3, 2.0.2 and 2.1.1 patch releases.

PiperOrigin-RevId: 312093793
Change-Id: I476369d7d3f8e8d54dd10f412f25049265fc688f

Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,annarev/tensorflow,aldian/tensorflow,yongtang/tensorflow,petewarden/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,davidzchen/tensorflow,tensorflow/tensorflow,yongtang/tensorflow,aam-at/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,Intel-Corporation/tensorflow,gautam1858/tensorflow,annarev/tensorflow,tensorflow/tensorflow-pywrap_saved_model,Intel-tensorflow/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,annarev/tensorflow,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,cxxgtxy/tensorflow,annarev/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,sarvex/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,petewarden/tensorflow,aldian/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,petewarden/tensorflow,annarev/tensorflow,frreiss/tensorflow-fred,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow,aam-at/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,gautam1858/tensorflow,sarvex/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_saved_model,tensorflow/tensorflow,petewarden/tensorflow,yongtang/tensorflow,paolodedios/tensorflow,frreiss/tensorflow-fred,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,sarvex/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,cxxgtxy/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,aldian/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,Intel-Corporation/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,davidzchen/tensorflow,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,sarvex/tensorflow,aam-at/tensorflow,aam-at/tensorflow,gautam1858/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,Intel-tensorflow/tensorflow,aam-at/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-pywrap_saved_model,freedomtan/tensorflow,freedomtan/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,frreiss/tensorflow-fred,yongtang/tensorflow,Intel-tensorflow/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,Intel-Corporation/tensorflow,aam-at/tensorflow,aldian/tensorflow,davidzchen/tensorflow,davidzchen/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,yongtang/tensorflow,sarvex/tensorflow,Intel-tensorflow/tensorflow,sarvex/tensorflow,yongtang/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,paolodedios/tensorflow,aam-at/tensorflow,paolodedios/tensorflow,tensorflow/tensorflow-pywrap_saved_model,frreiss/tensorflow-fred,frreiss/tensorflow-fred,aam-at/tensorflow,aldian/tensorflow,Intel-Corporation/tensorflow,cxxgtxy/tensorflow,gautam1858/tensorflow,Intel-Corporation/tensorflow,yongtang/tensorflow,yongtang/tensorflow,petewarden/tensorflow,karllessard/tensorflow,aldian/tensorflow,cxxgtxy/tensorflow,davidzchen/tensorflow,petewarden/tensorflow,davidzchen/tensorflow,paolodedios/tensorflow,gautam1858/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,frreiss/tensorflow-fred,karllessard/tensorflow,frreiss/tensorflow-fred,Intel-tensorflow/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,aldian/tensorflow,tensorflow/tensorflow,gautam1858/tensorflow,aam-at/tensorflow,tensorflow/tensorflow,paolodedios/tensorflow,karllessard/tensorflow,frreiss/tensorflow-fred,tensorflow/tensorflow-pywrap_saved_model,annarev/tensorflow,annarev/tensorflow,karllessard/tensorflow,davidzchen/tensorflow,karllessard/tensorflow,aldian/tensorflow,gautam1858/tensorflow,frreiss/tensorflow-fred,yongtang/tensorflow,tensorflow/tensorflow,tensorflow/tensorflow-pywrap_tf_optimizer,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow,annarev/tensorflow,sarvex/tensorflow,Intel-Corporation/tensorflow,cxxgtxy/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,tensorflow/tensorflow-experimental_link_static_libraries_once,freedomtan/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,gautam1858/tensorflow,paolodedios/tensorflow,annarev/tensorflow,Intel-Corporation/tensorflow,Intel-Corporation/tensorflow,karllessard/tensorflow,tensorflow/tensorflow,freedomtan/tensorflow,cxxgtxy/tensorflow,karllessard/tensorflow,freedomtan/tensorflow,gautam1858/tensorflow,freedomtan/tensorflow,paolodedios/tensorflow,aam-at/tensorflow,petewarden/tensorflow,tensorflow/tensorflow-pywrap_saved_model,petewarden/tensorflow,frreiss/tensorflow-fred,Intel-tensorflow/tensorflow,karllessard/tensorflow,tensorflow/tensorflow-experimental_link_static_libraries_once,annarev/tensorflow,cxxgtxy/tensorflow,Intel-tensorflow/tensorflow,davidzchen/tensorflow