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@@ -1,3 +1,70 @@
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+# RT-Thread v3.0.0 Change log
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+## Platform:
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+
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+* Add more POSIX features, for example poll/select, signal, termios etc.
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+* Add waitqueue for poll feature.
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+* Use fops for file operation. There are two ways to visit device object: rt_device_* API, the file API(open/read/write/close etc).
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+* Change the type of cmd from uint8_t to int in control interface.
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+* Add more C++ object for RT-Thread Kernel Object.
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+* Add wlan driver framework for wlan device operation.
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+* Integrate SFUD into RT-Thread to unify the operations of spi flash.
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+* Update lwIP to v2.0.2 version.
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+
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+## Tools:
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+
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+* Enable packages, with ENV tool.
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+* menuconfig & Kconfig.
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+* Add scons --dist for make a distribution for specified BSP.
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+
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+## BSP:
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+
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+* more MCU porting.
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+
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+## IoT:
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+
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+* put more IoT components as packages, for example, MQTT, CoAP, HTTP, TLS etc.
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+
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+# RT-Thread v2.1.0 Change log
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+
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+This release is the final release for RT-Thread v2.1.0 branch. This release has been delayed many time. After committed fh8620 and x1000 bsp, we are proud to announce this branch release of the official version.
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+
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+The change log since last stable version:
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+
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+## Kernel:
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+
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+* Move the init component to the kernel.
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+* Fix the device open flag issue.
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+* Add assertion hook.
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+* Better application module support.
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+* Does not lock scheduler when invoking soft-timer timeout function.
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+
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+## Board Support Package:
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+
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+* fh8620, which is provided by Shanghai Fullhan Microelectronics Co., Ltd. It's a IP camera chip with ARM1176, 300MHz, 16KB I-Cache and 16kB D-Cache.
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+* x1000 bsp. The CPU is a XBurst CPU 1.0GHz, MIPS-based, from Ingenic Semiconductor Co.,Ltd.
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+* imx6sx bsp, only the Cortex-A9 core porting in the NXP i.MX6 solox. BTW, another full Kinetis series porting was created in rt-thread_fsl, which is maintained by NXP employee.
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+* lpc5410x bsp, only the Cortex-M4 core porting.
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+* ls1cdev bsp for Loogson1C board.
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+* dm365 bsp.
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+* nRF51822/nRF52832 bsp.
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+* stm32f7-disco bsp, the first ARM Cortex-M7 porting in RT-Thread.
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+* stm32f411-nucleo bsp.
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+* Add IAR compiler support in beaglebone bsp.
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+
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+## Components:
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+
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+* Add more socket fd operators in DFS with a virtual lwIP file system ops.
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+* Add CAN/Hardware Timer device drivers.
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+* Fix the SDIO issue to support sdio wifi device.
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+* Add eMMC support in SD/MMC device drivers;
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+* Fix the NAT configured enter reset issue in lwIP NAT.
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+* RTGUI come back, but as a UI engine for blend point/line/rect and bitmap etc.
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+* Add nanopb porting, a small code-size Protocol Buffers implementation;
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+* Add paho-mqtt porting, the Eclipse Paho MQTT C/C++ client for Embedded platforms;
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+* Update freetype to 2.5.4 version.
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+* Enhance msh for file operations.
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+* Split the exported commands of finsh shell to a standalone section: ".rodata.name"
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+
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# RT-Thread v2.1.0 beta版本更改说明
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## BSP部分
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bernard