Summary Many changes, no release for a long time. Some of these changes are breaking, often it is just a matter of modules being reorganised or renamed. Please ask for help in the associated thread if you do not see how to fix a pre-v1.4 application. Hadrons is now C++17 Complete distillation and stochastic distillation module set (@felixerben & @nelsonlachini) Big clean-up of NPR modules (@fjosw & @felixerben) Batch deflation more suitable for GPU platform (@JPRichings) Rework and clean-up of multi-precision solvers and deflation (@rrhodgson) Grid GPU memory manager monitoring (@rrhodgson) Relativistic heavy-quark operator insertion (@ale-barone, @RChrHill & Matthew Black) Module to bundle contraction results in HDF5 files (@RChrHill) Rewrite of QED field generation (@aportelli) Please complain if I forgot something in the list above 🙂 Full list of PR contributions Four-quark NPR modules by @rabbott99 in https://github.com/aportelli/Hadrons/pull/16 Batch deflation benchmark by @JPRichings in https://github.com/aportelli/Hadrons/pull/69 Feature/distillation overhaul by @felixerben in https://github.com/aportelli/Hadrons/pull/53 Fix DiskVector bug/crash by @rabbott999 in https://github.com/aportelli/Hadrons/pull/66 Feature/batch guesser preload by @rrhodgson in https://github.com/aportelli/Hadrons/pull/70 Stat logger evictable memory fix by @rrhodgson in https://github.com/aportelli/Hadrons/pull/72 Specify the name of each propagator field to unpack… by @mmphys in https://github.com/aportelli/Hadrons/pull/71 Replaced Wilson Clover action by Compact Wilson Clover by @fjosw in https://github.com/aportelli/Hadrons/pull/76 Stat db collision fix by @rrhodgson in https://github.com/aportelli/Hadrons/pull/74 Preloaded batch deflation with source casting by @rrhodgson in https://github.com/aportelli/Hadrons/pull/73 Fix statDB in Test_hadrons_spectrum by @rrhodgson in https://github.com/aportelli/Hadrons/pull/77 Add initial code for new RHQ improvement modules by @RChrHill in https://github.com/aportelli/Hadrons/pull/75 Feature/benchmark meson field by @felixerben in https://github.com/aportelli/Hadrons/pull/63 Typo in Perambulator.hpp fixed which is only relevant for 4D actions. by @fjosw in https://github.com/aportelli/Hadrons/pull/82 Test/perambulator gpu by @felixerben in https://github.com/aportelli/Hadrons/pull/83 MixedPrecisionRBPrecBiCGSTAB Solver Module by @fjosw in https://github.com/aportelli/Hadrons/pull/81 bugfix in phase convention, would not have been applied if eigenvecto… by @felixerben in https://github.com/aportelli/Hadrons/pull/80 Feature/npr by @felixerben in https://github.com/aportelli/Hadrons/pull/59 Exponential clover by @fjosw in https://github.com/aportelli/Hadrons/pull/79 Feature/batch perambulator by @felixerben in https://github.com/aportelli/Hadrons/pull/88 Added getOutputFiles method to NPR modules. by @fjosw in https://github.com/aportelli/Hadrons/pull/92 Lower meson field memory footprint by @nelsonlachini in https://github.com/aportelli/Hadrons/pull/91 Naive scheduler by @fjosw in https://github.com/aportelli/Hadrons/pull/95 Implement eigenvector writes within a range, with the same conventions as the ranged eigenvector reads by @RChrHill in https://github.com/aportelli/Hadrons/pull/98 Feature/rhq improvement tensor by @mbr-phys in https://github.com/aportelli/Hadrons/pull/99 Feature/file bundling by @RChrHill in https://github.com/aportelli/Hadrons/pull/97 Garbage collection for naive scheduler by @fjosw in https://github.com/aportelli/Hadrons/pull/101 Validate naive scheduler by @fjosw in https://github.com/aportelli/Hadrons/pull/102 Fix/compiler warnings by @fjosw in https://github.com/aportelli/Hadrons/pull/103 EMLepton: Add option to use solves by @guelpers in https://github.com/aportelli/Hadrons/pull/105 Add gpu cache logging by @rrhodgson in https://github.com/aportelli/Hadrons/pull/107 Feature/meson contractions by @felixerben in https://github.com/aportelli/Hadrons/pull/100 Feat/TopologicalCharge by @fjosw in https://github.com/aportelli/Hadrons/pull/108 Local Coherence Deflation by @rrhodgson in https://github.com/aportelli/Hadrons/pull/109 Implement file bundling in remaining modules by @RChrHill in https://github.com/aportelli/Hadrons/pull/104 bugfix in meson module by @felixerben in https://github.com/aportelli/Hadrons/pull/111 Number of flavours in spectrum test reduced. by @fjosw in https://github.com/aportelli/Hadrons/pull/112 gamma matrices saved correctly to metadat by @felixerben in https://github.com/aportelli/Hadrons/pull/116 Full Changelog: https://github.com/aportelli/Hadrons/compare/v1.3...v1.4