Add lz4hdf5

.gitignore

@@ -17,4 +17,5 @@ O.*/
 .project
 .settings
 .clangd
+.iocsh_history
 .zed/

RELEASE.md

@@ -9,14 +9,19 @@ https://github.com/areaDetector/ADEiger/tags
 
 Release Notes
 =============
-R3-6 (January XXX, 2026)
+R3-6 (April XXX, 2026)
 ----
+* Added support for the Stream2 interface.  Stream2 supports multiple thresholds.
+   - Added new StreamVersion record to select the Stream or Stream2 interface.
+   - LZ4 compression on the Stream2 interface uses block-mode compression, which is
+     different from the LZ4 compression on the Stream interface. A new codec called
+     "lz4hdf5" was addeded to ADSupport R1-11 to support this compression.
+     Support for lz4hdf5 compression was added to NDPluginCodec in ADCore R3-15, and to the 
+     ImageJ NTNDArrayViewer plugin in ADViewers R1-8.
+* Added support for the v2024.2 format in the FileWriter interface, which also supports multiple thresholds.
+  - Added new FWHDF5Format record for the FileWriter interface to select the Legacy of v2024.2 format.
 * Added support for reading multiple thresholds.
   This is only for Eiger2 and Pilatus4 detectors, not older Pilatus or Eiger models.
-  - Added support for the Stream2 interface.  Stream2 supports multiple thresholds.
-  - Added new StreamVersion record to select the Stream or Stream2 interface.
-  - Added support for the v2024.2 format in the FileWriter interface, which also supports multiple thresholds.
-  - Added new FWHDF5Format record for the FileWriter interface to select the Legacy of v2024.2 format.
   - If DataSource=Stream with Stream2 or DataSource=FileWriter v2024.2 and if 
     more than one threshold is enabled then the driver creates one NDArray for each threshold.
   - The driver sends the NDArrays for all thresholds on asyn address 0. It sends

eigerApp/Makefile

@@ -3,12 +3,10 @@ include $(TOP)/configure/CONFIG
 
 DIRS := $(DIRS) frozenSrc
 DIRS := $(DIRS) tinyCBORSrc
-DIRS := $(DIRS) compressionSrc
 DIRS := $(DIRS) rfc3339Src
 DIRS := $(DIRS) src
 src_DEPEND_DIRS += frozenSrc
 src_DEPEND_DIRS += tinyCBORSrc
-src_DEPEND_DIRS += compressionSrc
 src_DEPEND_DIRS += rfc3339Src
 DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *db*))
 DIRS := $(DIRS) $(filter-out $(DIRS), $(wildcard *Db*))

eigerApp/src/Makefile

@@ -31,11 +31,6 @@ else
   LIB_SYS_LIBS  += hdf5_hl
 endif
 
-PROD += test_lz4
-test_lz4_SRCS += test_lz4.cpp
-test_lz4_LIBS += dectrisCompression
-test_lz4_SYS_LIBS += lz4
-
 include $(ADCORE)/ADApp/commonLibraryMakefile
 
 #=============================