| Date | Age | Event | Bishop | Title | Current Title |
| 15 Aug 2025 | 63.9 | Resigned | Giancarlo Dellagiovanna | Apostolic Nuncio to Burkina Faso | Apostolic Nuncio |
| 27 Aug 2025 | 80.8 | Died | Cesare Nosiglia † | Archbishop Emeritus of Torino {Turin} |
| 30 Aug 2025 | 45.8 | Appointed | Raffaele De Angelis | Bishop of Piana degli Albanesi (Italo-Albanese) |
| 31 Aug 2025 | 60.2 | Ceased | Pietro Tosato, O.F.M. Cap. | Apostolic Administrator of Quelimane, Mozambique | Priest of Order of Friars Minor Capuchin |
| 2 Sep 2025 | 92.6 | Died | Giuseppe Costanzo † | Archbishop Emeritus of Siracusa |
| 7 Sep 2025 | 65.4 | Installed | Santo Marcianò | Bishop of Frosinone-Veroli-Ferentino |
| 11 Sep 2025 | 83.0 | Died | Adriano Bernardini † | Apostolic Nuncio |
| 14 Sep 2025 | 65.4 | Installed | Santo Marcianò | Bishop of Anagni-Alatri | Bishop of Frosinone-Veroli-Ferentino |
| 15 Sep 2025 | 64.9 | Appointed | Piero Pioppo | Apostolic Nuncio to Spain |
| 64.9 | Appointed | Piero Pioppo | Apostolic Nuncio to Andorra | Apostolic Nuncio to Spain |
| 26 Sep 2025 | 67.7 | Appointed | Filippo Iannone, O. Carm. | Prefect of the Dicastery for Bishops |
| 67.7 | Appointed | Filippo Iannone, O. Carm. | President of the Pontifical Commission for Latin America | Prefect of the Dicastery for Bishops |
| 27 Sep 2025 | 46.8 | Appointed | Roberto Campisi | Permanent Observer to United Nations Educational, Scientific and Cultural Organization (UNESCO) |
| 2 Oct 2025 | 100.0 | Installed | Angelo Acerbi | Cardinal-Deacon of Santi Angeli Custodi a Città Giardino | Cardinal, Apostolic Nuncio |
| 5 Oct 2025 | 62.7 | Installed | Domenico Battaglia | Cardinal-Priest of San Marco in Agro Laurentino | Cardinal, Archbishop of Napoli {Naples} |
| 15 Oct 2025 | 67.8 | Installed | Filippo Iannone, O. Carm. | Prefect of the Dicastery for Bishops |
| 67.8 | Installed | Filippo Iannone, O. Carm. | President of the Pontifical Commission for Latin America | Prefect of the Dicastery for Bishops |
| 20 Oct 2025 | 86.0 | Died | Edoardo Menichelli † | Cardinal, Archbishop Emeritus of Ancona-Osimo |
| 6 Nov 2025 | 93.7 | Died | Giulio Sanguineti † | Bishop Emeritus of Brescia |
| 8 Nov 2025 | 46.0 | Ordained Bishop | Raffaele De Angelis | Bishop of Piana degli Albanesi (Italo-Albanese) |
| 14 Nov 2025 | 85.8 | Died | Diego Causero † | Apostolic Nuncio |
| 16 Nov 2025 | 46.0 | Installed | Raffaele De Angelis | Bishop of Piana degli Albanesi (Italo-Albanese) |
| 79.4 | Ceased | Francesco Montenegro | Apostolic Administrator of Piana degli Albanesi (Italo-Albanese) | Cardinal, Archbishop Emeritus of Agrigento |
| 54.9 | Installed | Baldassare Reina | Cardinal-Priest of Santa Maria Assunta e San Giuseppe a Primavalle | Cardinal, Vicar General of Roma {Rome} |
| 23 Nov 2025 | 59.3 | Ceased | Marco Mellino | Secretary of the Interdicasterial Commission for the Revision of the General Norms of the Roman Curia | Adjunct Secretary of the Dicastery for Legislative Texts |
| 27 Nov 2025 | 59.3 | Appointed | Marco Mellino | Adjunct Secretary of the Dicastery for Legislative Texts |
| 3 Dec 2025 | 77.4 | Died | Luigi Bonazzi † | Apostolic Nuncio |
| 5 Jan 2026 | 96.4 | Died | Paolo Gillet † | Auxiliary Bishop Emeritus of Albano |
| 6 Jan 2026 | 92.0 | Died | Raffaele Nogaro † | Bishop Emeritus of Caserta |
| 7 Jan 2026 | 81.6 | Died | Domenico Graziani † | Archbishop Emeritus of Crotone-Santa Severina |
| 9 Jan 2026 | 59.5 | Appointed | Domenico Basile | Bishop of Molfetta-Ruvo-Giovinazzo-Terlizzi | Bishop-Elect |
| 75.9 | Retired | Domenico Cornacchia | Bishop of Molfetta-Ruvo-Giovinazzo-Terlizzi | Bishop Emeritus |
| 96.2 | Died | Vincenzo Zarri † | Bishop Emeritus of Forli-Bertinoro |
| 10 Jan 2026 | 66.1 | Appointed | Felice Accrocca | Archbishop (Personal Title) of Assisi-Nocera Umbra-Gualdo Tadino | Bishop |
| 66.1 | Appointed | Felice Accrocca | Archbishop (Personal Title) of Foligno | Bishop of Assisi-Nocera Umbra-Gualdo Tadino |
| 77.6 | Retired | Domenico Sorrentino | Bishop of Assisi-Nocera Umbra-Gualdo Tadino | Bishop Emeritus |
| 77.6 | Retired | Domenico Sorrentino | Bishop of Foligno | Bishop Emeritus of Assisi-Nocera Umbra-Gualdo Tadino |