Add missing release notes for PRs in this engagement

docs/release_notes/upcoming.md

@@ -17,36 +17,92 @@ ready to be released, carry out the following steps:
 ## New features
 
 - Users can now optionally pass [custom options][highs-opts-docs] to the HiGHS solver ([#1276])
+- Input files are now copied to the output folder for reference ([#1282], [#1303])
 - Implement a new appraisal approach for the LCOX objective type ([#1319])
+- Circular commodity markets can now use cost-based pricing strategies ([#1322])
+- The `max_decommission_year` column in `assets.csv` is now optional, defaulting to
+  `commission_year` plus the process's lifetime if not provided ([#1354])
+- Investment/commodity graphs (as generated by `muse2 save-graphs`) now include secondary
+  (non-primary) edges ([#1361])
+- Implement a new appraisal approach for the NPV objective type ([#1379])
+- Added a configurable `commodity_balance_epsilon` model parameter to help candidate assets dispatch
+  during investment appraisal ([#1387], [#1445])
+- New tranching approach for investment appraisal, sizing candidate asset capacities based on
+  annual demand rather than demand limiting capacity ([#1391], [#1395])
+- Added a fallback price to investment appraisal to reduce the risk of failed dispatch runs
+  ([#1420])
+- The execution time of key simulation steps (e.g. dispatch, agent investment) is now logged
+  ([#1421])
+- The `addition_limit` column in `process_investment_constraints.csv` is now optional ([#1427])
 - Memory usage and performance has been drastically improved for divisible assets with many units
   ([#1464])
 
 ## Breaking changes
 
 - Changed the default `pricing_strategy` for SED/SVD commodities from "shadow" to "full_average" ([#1281])
+- The individual units of divisible assets are no longer treated as separate assets and are instead
+  grouped under a single larger asset, affecting a number of output files. The `group_id` column has
+  been removed from all files. ([#1286], [#1302], [#1455])
 - The `agent_search_space.csv` input file has been renamed to `agent_search_spaces.csv` for
   consistency ([#1293])
 - Due to an internal change, some options in CSV files are now case sensitive (e.g. you must put
   `lcox` rather than `LCOX`). The error message you see if it does not match will now be more
   informative, however. ([#1376])
+- Stricter input validation: `capacity_to_activity` must now be greater than zero. Previously,
+  `capacity_to_activity = 0` was permitted ([#1391])
 
 ## Bug fixes
 
 - Fix misleading warning message for assets decommissioned before simulation start ([#1259])
+- Avoid installing excessive candidate capacity during investment when there is little demand
+  remaining ([#1271])
 - Fix parsing and validation of agent search space file ([#1293])
+- Fix a bug in asset selection for circular commodity markets when agents in the same cycle have
+  different commodity shares ([#1323])
+- Fix demand limiting capacity calculations to account for seasonal/annual activity limits ([#1326])
+- Prevent commodities of type `OTH` from being specified in `agent_commodity_portions.csv` ([#1327])
 - Use shadow prices rather than market prices for appraisal optimisations and dispatch runs during
   investment ([#1349])
-- Updated input data validation to ensure `capacity_to_activity > 0`. Previously,
- `capacity_to_activity = 0` was permitted.
+- Asset selection can now continue even if it runs out of options, giving dispatch a chance to still
+  meet demand, rather than failing immediately ([#1365])
+- Calculate commodity prices using the dispatch solution without candidate assets, so that they are
+  consistent with the flows reported in `commodity_flows.csv` ([#1389])
+- Fix price calculations to prioritise active assets over inactive ones when determining commodity
+  prices ([#1392])
+- The `unmet_demand.csv` output file is no longer created unless it is needed ([#1405])
 - Mothballed assets are now excluded from the main dispatch run ([#1458])
 
 [highs-opts-docs]: ../developer_guide/custom_highs_options.md
 [#1259]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1259
+[#1271]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1271
 [#1276]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1276
 [#1281]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1281
+[#1282]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1282
+[#1286]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1286
 [#1293]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1293
+[#1302]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1302
+[#1303]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1303
 [#1319]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1319
+[#1322]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1322
+[#1323]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1323
+[#1326]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1326
+[#1327]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1327
 [#1349]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1349
+[#1354]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1354
+[#1361]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1361
+[#1365]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1365
 [#1376]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1376
+[#1379]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1379
+[#1387]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1387
+[#1389]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1389
+[#1391]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1391
+[#1392]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1392
+[#1395]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1395
+[#1405]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1405
+[#1420]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1420
+[#1421]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1421
+[#1427]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1427
+[#1445]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1445
+[#1455]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1455
 [#1458]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1458
 [#1464]: https://github.com/EnergySystemsModellingLab/MUSE2/pull/1464