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stevengj merged 6 commits into from
Apr 24, 2026
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Prepare for 1.33 release #3200

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prepare for 1.33 release
oskooi Apr 16, 2026
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fixes
oskooi Apr 16, 2026
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Update NEWS.md
stevengj Apr 16, 2026
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stevengj Apr 24, 2026
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24 changes: 24 additions & 0 deletions NEWS.md
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Original file line number Diff line number Diff line change
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# Meep Release Notes

## Meep 1.33.0

4/24/2026

* Performance optimization for time stepping in cylindrical coordinates ([#3158]).

* Performance optimization for repeated eigenmode solves ([#3167]).

* Multithreading support for epsilon initialization ([#3166], [#3171]).

* Bug fix when combining Bloch-periodic boundaries and mirror symmetries ([#3155]).

* Bug fix when combining Bloch-periodic boundaries and single-precision floating point ([#3157]).

* Bug fix in interpolation of epsilon grid from Meep to MPB ([#3163]).

* Bug fix when combining dft_force and mirror symmetry ([#3161]).

* Bug fix in grid_volume::init_subvolume in cylindrical coordinates ([#3174]).

* Bug fix in Simulation.load_chunk_layout ([#3189]).

* Various improvements and additional documentation ([#3159], [#3169], [#3179], [#3185], [#3187], [#3188], [#3190], [#3193], [#3195], [#3199]).

## Meep 1.32.0

2/20/2026
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4 changes: 2 additions & 2 deletions configure.ac
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# Process this file with autoconf to produce a configure script.

AC_INIT([meep],[m4_esyscmd(./version.sh 1.33.0-beta)])
AC_INIT([meep],[m4_esyscmd(./version.sh 1.33.0)])
AC_CONFIG_SRCDIR(src/step.cpp)
AC_CONFIG_AUX_DIR([build-aux])

# Shared-library version number; indicates api compatibility, and is
# not the same as the "public" version number. (Don't worry about this
# except for public releases.) Note that any change to a C++ class
# definition (in the .hpp file) generally breaks binary compatibility.
SHARED_VERSION_INFO="36:0:1" # CURRENT:REVISION:AGE
SHARED_VERSION_INFO="37:0:0" # CURRENT:REVISION:AGE

AM_INIT_AUTOMAKE([foreign color-tests parallel-tests silent-rules 1.11])
AM_SILENT_RULES(yes)
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