HI Martin and Wes, Related to sessions, here’s what we want to get into 4.1 for sure: Language bindings chapter needs updating for Sessions model https://github.com/mpi-forum/mpi-issues/issues/535<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/535__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1eyxwS7A$> https://github.com/mpi-forum/mpi-standard/pull/658<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/658__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1DZW7bIQ$> MPI_LASTUSEDCODE not covered in the sessions model https://github.com/mpi-forum/mpi-issues/issues/545<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/545__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH157LypR0$> https://github.com/mpi-forum/mpi-standard/pull/657<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/657__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1jOHV2sg$> Clarify/fix description and usage of MPI_GROUP_NULL https://github.com/mpi-forum/mpi-issues/issues/534<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/534__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1eq-IZ3k$> https://github.com/mpi-forum/mpi-standard/pull/651<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/651__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1-YYHK7Q$> expansion of error handler association to cover sessions (and clarifications) https://github.com/mpi-forum/mpi-issues/issues/511<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-issues/issues/511__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1w9vdPdw$> https://github.com/mpi-forum/mpi-standard/pull/629<https://urldefense.com/v3/__https:/github.com/mpi-forum/mpi-standard/pull/629__;!!Bt8fGhp8LhKGRg!CMQ53r-tmxPE0Xm8vO0BZ0v3qjLdEkCEcka57rjIidhE95NUUEzC_coUX2SjDNT8xU-JK_J00NKBGcTJuLH1OdhAUJU$> In addition, we may see if there’s a low overhead way to address concerns Rolf has about MPI_Buffer_attach: https://lists.mpi-forum.org/pipermail/mpiwg-sessions/2022-September/000683.h... https://github.com/mpiwg-sessions/sessions-issues/issues/25 Howard — [signature_61897647] Howard Pritchard Research Scientist HPC-ENV Los Alamos National Laboratory [email protected] [signature_3995356166]<https://www.instagram.com/losalamosnatlab/>[signature_3950813466]<https://twitter.com/LosAlamosNatLab>[signature_40138494]<https://www.linkedin.com/company/los-alamos-national-laboratory/>[signature_706636742]<https://www.facebook.com/LosAlamosNationalLab/>