diff --git a/libraries/DAC8554/CHANGELOG.md b/libraries/DAC8554/CHANGELOG.md
index d4f5cd69..fd0bf4ad 100644
--- a/libraries/DAC8554/CHANGELOG.md
+++ b/libraries/DAC8554/CHANGELOG.md
@@ -6,11 +6,15 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 
+## [0.2.6] - 2023-10-19
+- update readme.md
+- minor edits
+
+
 ## [0.2.5] - 2022-10-31
 - add changelog.md
 - add rp2040 to build-CI
 
-
 ## [0.2.4] - 2021-12-15
 - update library.json
 - update license
diff --git a/libraries/DAC8554/DAC8554.cpp b/libraries/DAC8554/DAC8554.cpp
index 4a7aa0bf..b1220f62 100644
--- a/libraries/DAC8554/DAC8554.cpp
+++ b/libraries/DAC8554/DAC8554.cpp
@@ -2,10 +2,9 @@
 //    FILE: DAC8554.cpp
 //  AUTHOR: Rob Tillaart
 // PURPOSE: Arduino library for DAC8554 SPI Digital Analog Convertor
-// VERSION: 0.2.4
+// VERSION: 0.2.6
+//    DATE: 2017-12-19
 //     URL: https://github.com/RobTillaart/DAC8554
-//
-//  HISTORY: see changelog.md
 
 
 #include "DAC8554.h"
diff --git a/libraries/DAC8554/DAC8554.h b/libraries/DAC8554/DAC8554.h
index fcc62601..433244b2 100644
--- a/libraries/DAC8554/DAC8554.h
+++ b/libraries/DAC8554/DAC8554.h
@@ -3,15 +3,15 @@
 //    FILE: DAC8554.h
 //  AUTHOR: Rob Tillaart
 // PURPOSE: Arduino library for DAC8554 SPI Digital Analog Convertor  
-// VERSION: 0.2.5
-// HISTORY: See DAC8554.cpp
+// VERSION: 0.2.6
+//    DATE: 2017-12-19
 //     URL: https://github.com/RobTillaart/DAC8554
 //
 
 #include "Arduino.h"
 #include "SPI.h"
 
-#define DAC8554_LIB_VERSION                       (F("0.2.5"))
+#define DAC8554_LIB_VERSION                       (F("0.2.6"))
 
 #define DAC8554_POWERDOWN_NORMAL                  0x00
 #define DAC8554_POWERDOWN_1K                      0x40
@@ -99,5 +99,5 @@ private:
 };
 
 
-// -- END OF FILE --
+//  -- END OF FILE --
 
diff --git a/libraries/DAC8554/README.md b/libraries/DAC8554/README.md
index 2a184116..c0034420 100644
--- a/libraries/DAC8554/README.md
+++ b/libraries/DAC8554/README.md
@@ -2,8 +2,12 @@
 [![Arduino CI](https://github.com/RobTillaart/DAC8554/workflows/Arduino%20CI/badge.svg)](https://github.com/marketplace/actions/arduino_ci)
 [![Arduino-lint](https://github.com/RobTillaart/DAC8554/actions/workflows/arduino-lint.yml/badge.svg)](https://github.com/RobTillaart/DAC8554/actions/workflows/arduino-lint.yml)
 [![JSON check](https://github.com/RobTillaart/DAC8554/actions/workflows/jsoncheck.yml/badge.svg)](https://github.com/RobTillaart/DAC8554/actions/workflows/jsoncheck.yml)
+[![GitHub issues](https://img.shields.io/github/issues/RobTillaart/DAC8554.svg)](https://github.com/RobTillaart/DAC8554/issues)
+
 [![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/RobTillaart/DAC8554/blob/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/RobTillaart/DAC8554.svg?maxAge=3600)](https://github.com/RobTillaart/DAC8554/releases)
+[![PlatformIO Registry](https://badges.registry.platformio.org/packages/robtillaart/library/DAC8554.svg)](https://registry.platformio.org/libraries/robtillaart/DAC8554)
+
 
 # DAC8554
 
@@ -19,6 +23,10 @@ The DAC8554 is a SPI based 16 bit DAC with four channels.
 
 ## Interface
 
+```cpp
+#include "DAC8554.h"
+```
+
 ### Core
 
 - **DAC8554(uint8_t slaveSelect, uint8_t address = 0)** Constructor for hardware SPI,
@@ -52,7 +60,7 @@ The **selectVSPI()** or the **selectHSPI()** needs to be called
 BEFORE the **begin()** function.
 
 
-#### experimental
+#### Experimental
 
 - **void setGPIOpins(uint8_t clk, uint8_t miso, uint8_t mosi, uint8_t select)** 
 overrule GPIO pins of ESP32 for hardware SPI. 
@@ -107,5 +115,26 @@ See examples
 
 ## Future
 
-- testing
+#### Must
 
+- improve documentation
+- testing with hardware
+
+
+#### Should
+
+#### Could
+
+- performance measurements
+
+
+#### Wont
+
+
+## Support
+
+If you appreciate my libraries, you can support the development and maintenance.
+Improve the quality of the libraries by providing issues and Pull Requests, or
+donate through PayPal or GitHub sponsors.
+
+Thank you,
diff --git a/libraries/DAC8554/library.json b/libraries/DAC8554/library.json
index 7387f109..d4e41b67 100644
--- a/libraries/DAC8554/library.json
+++ b/libraries/DAC8554/library.json
@@ -15,9 +15,9 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/DAC8554"
   },
-  "version": "0.2.5",
+  "version": "0.2.6",
   "license": "MIT",
-  "frameworks": "arduino",
+  "frameworks": "*",
   "platforms": "*",
   "headers": "DAC8554.h"
 }
diff --git a/libraries/DAC8554/library.properties b/libraries/DAC8554/library.properties
index ca3edd57..8970400a 100644
--- a/libraries/DAC8554/library.properties
+++ b/libraries/DAC8554/library.properties
@@ -1,5 +1,5 @@
 name=DAC8554
-version=0.2.5
+version=0.2.6
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for DAC8554 SPI Digital Analog Convertor