Attendees: Bertrand Bellenot, Hubert Degaudenzi, Stephen Gowdy, Benedikt Hegner, Alexander Kalkhof, Emil Obreshkov, Raffaello Trentadue, Andrea Valassi, Announcements: ElectricCloud presentation on Tuesday Action items: Switch to gcc435 in all slots, after LHCb agreed on timing for this <- action Benedikt Update tcmalloc <- action Benedikt Forward information about CMT v23 effects on Gaudi <- action Emil Obreshkov Previous action items: clarify windows situation for Frontier <- action Hubert / Benedikt (still open) follow up on distcc <- action Emil / Benedikt (closed) get information about CMT version update <- action Emil Obreshkov (closed) Round table: ==== SPI: Last weekend there was a total service interruption due to account problems. The lcgnight user was considered orphan and got an automatic expiration. A graduate student from TU Munich is working on a use pattern analysis in savannah and other issue tracking tools. She is guest of the group for the next few months. The savannah user survey was sent around and now experiments will be approached. LCGCVS to CVS migration still not satisfactory. ATLAS: Created a release 17.00.00 last week, based on LCGCMT_60b. Will be used for re-processing and data taking. The new CMT v23 [note: released the day after the meeting] triggers changes in the Gaudi requirements files. On the build side, working on automatic include optimization, and the removal of dbg builds. Future solution will be opt build+ dbg symbols in additional files. LHCb: Discussion about frontier on windows. To be mentioned in the AF. Attention during expat upgrade - grid tools cause an implicit dependency on a version. CMS: The LCGCVS to CVS migration still causes huge performance penalty. Persistency projects: CMS and LHCb remove(d) their dependency on POOL. Will discuss with ATLAS on the future of POOL maintenance and responsibilities. Maybe migrate into ATLAS code base. Last week problems with CVS browsing after migration. Simulation: not present ROOT: new version 5.28.00d released. Was requested by ALICE.