Pypsa

What's Changed
* set periods correctly by lisazeyen in https://github.com/PyPSA/PyPSA/pull/840
* Update users.rst adding TERI report by pz-max in https://github.com/PyPSA/PyPSA/pull/842
* Fix conversion of weights to json in case of pd.Series by koen-vg in https://github.com/PyPSA/PyPSA/pull/846
* merge instead of concat by lisazeyen in https://github.com/PyPSA/PyPSA/pull/841
* Fix calculation of MGA cost bound by koen-vg in https://github.com/PyPSA/PyPSA/pull/847
* optimization: always use name and mask keys in variable and constraint assignment by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/852
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/853
* prepare release v0.27.1 by fneum in https://github.com/PyPSA/PyPSA/pull/854


**Full Changelog**: https://github.com/PyPSA/PyPSA/compare/v0.27.0...v0.27.1

What's Changed
* plot: scale split bus circle area by factor 2 by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/820
* Fixes for multi horizon constraints by koen-vg in https://github.com/PyPSA/PyPSA/pull/821
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/824
* MGA return codes by koen-vg in https://github.com/PyPSA/PyPSA/pull/826
* Orient mga weights dict as "list" to allow multiindex json dump by koen-vg in https://github.com/PyPSA/PyPSA/pull/828
* Fix budget calculation for MGA on multi-horizon model by koen-vg in https://github.com/PyPSA/PyPSA/pull/827
* remove most deprecated functions > 4 months by fneum in https://github.com/PyPSA/PyPSA/pull/832
* remove pyomo support for python >= 3.12 by fneum in https://github.com/PyPSA/PyPSA/pull/831
* bump networkx minimum version to v2 (from 2017) by fneum in https://github.com/PyPSA/PyPSA/pull/833
* fix statistics bug by p-glaum in https://github.com/PyPSA/PyPSA/pull/834
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/835
* global_constraints: allow non-one-port components in global carrier c… by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/836
* prepare release v0.27.0 by fneum in https://github.com/PyPSA/PyPSA/pull/837


**Full Changelog**: https://github.com/PyPSA/PyPSA/compare/v0.26.3...v0.27.0

What's Changed
* Fix indentation in quick_start.rst by siddharth-krishna in https://github.com/PyPSA/PyPSA/pull/816
* bugfix: sign error in line capacity constraint with losses by fneum in https://github.com/PyPSA/PyPSA/pull/818
* store transmission losses via n.lines_t.p{0,1} by fneum in https://github.com/PyPSA/PyPSA/pull/819

New Contributors
* siddharth-krishna made their first contribution in https://github.com/PyPSA/PyPSA/pull/816

**Full Changelog**: https://github.com/PyPSA/PyPSA/compare/v0.26.2...v0.26.3

What's Changed
* bugfix for StorageUnit spillage variables in linopy by fneum in https://github.com/PyPSA/PyPSA/pull/813


**Full Changelog**: https://github.com/PyPSA/PyPSA/compare/v0.26.1...v0.26.2

What's Changed
* remove numexpr version constraint by metab0t in https://github.com/PyPSA/PyPSA/pull/800
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/801
* turn `n_mod` output into float by fneum in https://github.com/PyPSA/PyPSA/pull/803
* remove `n_mod` output attribute by fneum in https://github.com/PyPSA/PyPSA/pull/804
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/808
* fix nan in aggregateoneport by lisazeyen in https://github.com/PyPSA/PyPSA/pull/809
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/811
* strict pandas types by martacki in https://github.com/PyPSA/PyPSA/pull/806
* mga: correctly read in string-based optimisation sense by fneum in https://github.com/PyPSA/PyPSA/pull/812

New Contributors
* metab0t made their first contribution in https://github.com/PyPSA/PyPSA/pull/800

**Full Changelog**: https://github.com/PyPSA/PyPSA/compare/v0.26.0...v0.26.1

What's Changed
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/744
* Attrs dtype warning/errors by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/739
* fix typo in release_notes.rst by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/747
* Add dynamic ramp rates for generators and links by PeterKlein11 in https://github.com/PyPSA/PyPSA/pull/736
* Sourcery refactored master branch by sourcery-ai in https://github.com/PyPSA/PyPSA/pull/748
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/753
* statistics: add bus_carrier argument by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/752
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/756
* statistics: fix snapshot weighting for multi invest in aggregate_time by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/758
* Fix globalconstraints in a multiperiod context by coroa in https://github.com/PyPSA/PyPSA/pull/761
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/764
* Add "Shape" component by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/755
* abstract: eventually use objective expression by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/768
* Fixes to multi-decade optimisations by coroa in https://github.com/PyPSA/PyPSA/pull/770
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/773
* adjust plotting function by p-glaum in https://github.com/PyPSA/PyPSA/pull/774
* Fix multi-horizon UC by PeterKlein11 in https://github.com/PyPSA/PyPSA/pull/763
* plot: ensure all bus coordinates are kept for referencing by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/775
* Fix dynamic ramp rates for multi horizon by PeterKlein11 in https://github.com/PyPSA/PyPSA/pull/776
* init: add statistics module by FabianHofmann in https://github.com/PyPSA/PyPSA/pull/778
* bugfix for 779 by fneum in https://github.com/PyPSA/PyPSA/pull/784
* add Python 3.12 to CI by fneum in https://github.com/PyPSA/PyPSA/pull/754
* Add modularity to components by enricogiglio in https://github.com/PyPSA/PyPSA/pull/666
* adding save_crs functions by drifter089 in https://github.com/PyPSA/PyPSA/pull/769
* [pre-commit.ci] pre-commit autoupdate by pre-commit-ci in https://github.com/PyPSA/PyPSA/pull/786
* And notes on MWE to documentation by euronion in https://github.com/PyPSA/PyPSA/pull/789
* Fix rolling horizon bug in unit commitment by p-glaum in https://github.com/PyPSA/PyPSA/pull/780
* Fix stand_by_cost implementation in optimization by cfvescovo in https://github.com/PyPSA/PyPSA/pull/793
* prepare release 0.26.0 by fneum in https://github.com/PyPSA/PyPSA/pull/794

New Contributors
* PeterKlein11 made their first contribution in https://github.com/PyPSA/PyPSA/pull/736
* sourcery-ai made their first contribution in https://github.com/PyPSA/PyPSA/pull/748
* drifter089 made their first contribution in https://github.com/PyPSA/PyPSA/pull/769
* cfvescovo made their first contribution in https://github.com/PyPSA/PyPSA/pull/793

**Full Changelog**: https://github.com/PyPSA/PyPSA/compare/v0.25.2...v0.26.0