| Date | Age | Event | Bishop | Title | Current Title |
| 5 Dec 2023 | 79.1 | Appointed | Vincent Rakotozafy | Apostolic Administrator of Tôlagnaro | Bishop Emeritus |
| 79.1 | Retired | Vincent Rakotozafy | Bishop of Tôlagnaro | Bishop Emeritus |
| 54.1 | Appointed | Luc Olivier Razafitsimialona | Bishop of Tôlagnaro |
| 16 Jan 2024 | 92.7 | Died | Sergio Sebastiani † | Cardinal, President Emeritus of the Prefecture for the Economic Affairs of the Holy See |
| 28 Jan 2024 | 79.2 | Ceased | Vincent Rakotozafy | Apostolic Administrator of Tôlagnaro | Bishop Emeritus |
| 54.2 | Ordained Bishop | Luc Olivier Razafitsimialona | Bishop of Tôlagnaro |
| 12 Feb 2024 | 48.7 | Appointed | Jean Désiré Razafinirina | Bishop of Morombe |
| 9 Mar 2024 | 52.4 | Appointed | Jean Claude Rakotoarisoa | Bishop of Miarinarivo |
| 14 Apr 2024 | 48.9 | Ordained Bishop | Jean Désiré Razafinirina | Bishop of Morombe |
| 2 May 2024 | 49.4 | Appointed | Clément Hérizo Rakotoasimbola, M.S. | Bishop of Maintirano |
| 12 May 2024 | 56.3 | Ceased | Marie Fabien Raharilamboniaina, O.C.D. | Apostolic Administrator of Miarinarivo | Bishop of Morondava |
| 52.6 | Ordained Bishop | Jean Claude Rakotoarisoa | Bishop of Miarinarivo |
| 14 Jul 2024 | 49.6 | Ordained Bishop | Clément Hérizo Rakotoasimbola, M.S. | Bishop of Maintirano |
| 65.7 | Ceased | Zygmunt Robaszkiewicz, M.S.F. | Apostolic Administrator of Maintirano | Bishop of Mahajanga |
| 14 Aug 2024 | 44.9 | Appointed | Orthasie Marcellin Herivonjilalaina | Bishop of Ambatondrazaka |
| 13 Oct 2024 | 45.0 | Ordained Bishop | Orthasie Marcellin Herivonjilalaina | Bishop of Ambatondrazaka |
| 31 Oct 2024 | 75.9 | Appointed | Gaetano Di Pierro, S.C.I. | Apostolic Administrator of Farafangana | Bishop Emeritus |
| 75.9 | Retired | Gaetano Di Pierro, S.C.I. | Bishop of Farafangana | Bishop Emeritus |
| 61.5 | Appointed | Marcellin Randriamamonjy | Bishop of Farafangana |
| 5 Jan 2025 | 76.0 | Ceased | Gaetano Di Pierro, S.C.I. | Apostolic Administrator of Farafangana | Bishop Emeritus |
| 61.7 | Installed | Marcellin Randriamamonjy | Bishop of Farafangana |
| 70.5 | Appointed | Désiré Tsarahazana | Apostolic Administrator of Fenoarivo Atsinanana | Cardinal, Archbishop of Toamasina |
| 17 Apr 2025 | 59.0 | Appointed | Marek Ochlak, O.M.I. | Bishop of Fenoarivo Atsinanana |
| 30 Apr 2025 | 84.8 | Died | Ferdinand Botsy, O.F.M. Cap. † | Bishop Emeritus of Ambanja |
| 26 Jun 2025 | 58.0 | Appointed | Mamiarisoa Modeste Randrianifahanana | Auxiliary Bishop of Antananarivo |
| 58.0 | Appointed | Mamiarisoa Modeste Randrianifahanana | Titular Bishop of Iucundiana | Auxiliary Bishop of Antananarivo |
| 6 Jul 2025 | 59.3 | Ordained Bishop | Marek Ochlak, O.M.I. | Bishop of Fenoarivo Atsinanana |
| 10 Aug 2025 | 59.4 | Installed | Marek Ochlak, O.M.I. | Bishop of Fenoarivo Atsinanana |
| 71.1 | Ceased | Désiré Tsarahazana | Apostolic Administrator of Fenoarivo Atsinanana | Cardinal, Archbishop of Toamasina |
| 11 Sep 2025 | 83.0 | Died | Adriano Bernardini † | Apostolic Nuncio |
| 21 Sep 2025 | 58.2 | Ordained Bishop | Mamiarisoa Modeste Randrianifahanana | Titular Bishop of Iucundiana | Auxiliary Bishop of Antananarivo |
| 25 Oct 2025 | 52.7 | Appointed | Jean Nicolas Rakotojaona | Coadjutor Archbishop of Fianarantsoa |
| 21 Feb 2026 | 53.7 | Appointed | Landry Philippe Rasamison, O.F.M. Cap. | Bishop of Port Victoria o Seychelles |
| 12 Apr 2026 | 53.9 | Ordained Bishop | Landry Philippe Rasamison, O.F.M. Cap. | Bishop of Port Victoria o Seychelles |
| 14 May 2026 | 55.5 | Appointed | Tomasz Grysa | Apostolic Nuncio to Uganda |