This is an update to the IMERG V08 transition schedule posted on April 28, 2026, at https://gpm.nasa.gov/data/news/imerg-v08-transition-schedule. At this moment, the IMERG development team is still waiting for V08 of one of the parent products to IMERG to be finalized. Until this parent product becomes available, the team cannot assess its full impact on IMERG V08 and move towards a complete reprocessing of the record starting 1998. Therefore, at this stage, it seems more likely that IMERG V08 Final Run will be released in the fall of 2026, though this projection assumes that the parent...

For the Final Run, the V07 record ends in September 2025 because the parent products feeding into the IMERG algorithm (CORRA and GPROF) are being upgraded to V08. If processing were to go beyond September, the Final record would have to use V08 inputs instead of V07 inputs. Since the IMERG V07 code is configured with the expectation of V07 inputs, this would introduce potential discontinuities in the Final record. The IMERG V08 Final Run is planned for release in the summer of 2026, though this timeline assumes that V08 of the parent products behaves within expected bounds. When this release...

On Tuesday, 20 January 2026, NASA's Precipitation Processing System (PPS) will temporarily shutdown the GPM Near Real-time (NRT) system at 18:00 EST (23:00 UTC). This is necessary to complete the move of data from the current high-speed storage system (not currently under maintenance) to the new storage system that is under maintenance. It will take approximately 14 hours to finalize the synchronization of the data from the old storage to the new one. During this 14 hours no new data will be produced or ingested. While user access to the file server (jsimpson.pps.eosdis.nasa.gov and...

Department of Defense officials have reached an agreement to continue sharing DMSP SSMIS data until the sensor fails, or until the program formally ends (currently planned for September 2026). This decision puts off for now the impacts that the previously announced SSMIS shutdown would have had on the IMERG product.

It was announced on Monday, June 30, that NASA requested and it was agreed to postpone the removal of SSMIS data and to continue processing and distributing DMSP data through July 31.