diff --git a/CMakeLists.txt b/CMakeLists.txt
index a79db35..98d23a6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@
 endif()
 
 set(POPPLER_MAJOR_VERSION "0")
-set(POPPLER_MINOR_VERSION "55")
+set(POPPLER_MINOR_VERSION "56")
 set(POPPLER_MICRO_VERSION "0")
 set(POPPLER_VERSION "${POPPLER_MAJOR_VERSION}.${POPPLER_MINOR_VERSION}.${POPPLER_MICRO_VERSION}")
 
diff --git a/NEWS b/NEWS
index 448b06e..0ca52ca 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+Release 0.56.0
+        core:
+         * FormFieldButton::setState() shouldn't check the field is readOnly
+         * Fix crashes on multiple broken files
+
+        utils:
+         * pdfunite: Fix crash with broken documents. Bugs #101153 #101149
+
 Release 0.55.0
         core:
          * Fix abort in files with broken Decode arrays. KDE bug #379835
diff --git a/configure.ac b/configure.ac
index 6e3c6a4..98d497a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 m4_define([poppler_version_major],[0])
-m4_define([poppler_version_minor],[55])
+m4_define([poppler_version_minor],[56])
 m4_define([poppler_version_micro],[0])
 m4_define([poppler_version],[poppler_version_major.poppler_version_minor.poppler_version_micro])
 
diff --git a/cpp/Doxyfile b/cpp/Doxyfile
index d29e6a5..53d1452 100644
--- a/cpp/Doxyfile
+++ b/cpp/Doxyfile
@@ -31,7 +31,7 @@
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.55.0
+PROJECT_NUMBER         = 0.56.0
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.
diff --git a/qt4/src/Doxyfile b/qt4/src/Doxyfile
index f756dce..b85278d 100644
--- a/qt4/src/Doxyfile
+++ b/qt4/src/Doxyfile
@@ -31,7 +31,7 @@
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.55.0
+PROJECT_NUMBER         = 0.56.0
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.
diff --git a/qt5/src/Doxyfile b/qt5/src/Doxyfile
index c5c873a..a7f71f4 100644
--- a/qt5/src/Doxyfile
+++ b/qt5/src/Doxyfile
@@ -31,7 +31,7 @@
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.55.0
+PROJECT_NUMBER         = 0.56.0
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.