Complete column history: add sol legacy, gf removal, exchange columns, pumped storage

README.md

@@ -68,10 +68,16 @@ The API schema has always contained all 33 columns, but several transitioned fro
 | Column(s) | Change | Date |
 |---|---|---|
 | `icb` | zero → active | 2013-02-28 08:50 |
-| `solFot`, `solTer`, `termRenov`, `cogenResto` | zero → active (split out from legacy aggregates) | 2015-04-30 22:00 |
-| `bat`, `consBat` | zero → active (grid-scale batteries deployed) | 2024-10-24 |
-| `vap` | zero → active (steam generation added to reporting) | 2025-07-14 14:00 |
-| `aut` | active → zero (self-generation reporting discontinued) | 2025-12-12 |
+| `sol` | zero → active (solar aggregate) | 2013-07-24 09:10 |
+| `solFot`, `solTer` | zero → active (solar split into PV + thermal; `sol` kept as legacy aggregate) | 2015-04-30 22:00 |
+| `termRenov`, `cogenResto` | zero → active | 2015-04-30 22:00 |
+| `gnhd`, `conb` | zero → active (pumped storage detail) | 2022-01-25 |
+| `turb` | zero → active (pumped storage turbine) | 2024-09-19 08:45 |
+| `exp*`, `imp*` | zero → active (per-country exchange breakdown) | 2024-09-18 02:00 |
+| `bat`, `consBat`, `dif` | zero → active (grid-scale batteries) | 2024-10-24 |
+| `vap` | zero → active (steam generation) | 2025-07-14 14:00 |
+| `gf` | active → zero (natural gas fuel discontinued) | 2024-10-01 13:00 |
+| `aut` | active → zero (self-generation reporting discontinued) | 2025-12-11 11:10 |
 
 ## Usage