Revision History - 2021.2 English

The following table shows the revision history for Getting Started with Vitis HLS.

Section	Revision Summary
12/15/2021 Version 2021.2
Impact of Struct Size on Pipelining Vitis HLS Memory Layout Model Vitis HLS Alignment Rules and Semantics Deleted Assertions Using Manual Burst	Updated Sections
08/05/2021 Version 2021.1
Entire section	No changes to this section.
06/16/2021 Version 2021.1
Entire section	No changes to this section.

The following table shows the revision history for Vitis HLS Hardware Design Methodology.

Section	Revision Summary
10/22/2021 Version 2021.2
Entire section	No changes to this section.
08/05/2021 Version 2021.1
Interfaces for Vitis Kernel Flow Interfaces for Vivado IP Flow S_AXILITE and Port-Level Protocols	Updated Sections
06/16/2021 Version 2021.1
Introduction to the Methodology Guide Variable Loop Bounds FIFO Interfaces Arbitrary Precision (AP) Data Types Floats and Doubles Composite Data Types Structs Multi-Access Pointers on the Interface Defining Interfaces AXI4-Lite Interface	Updated Sections

The following table shows the revision history for Vitis HLS Command Reference.

Section	Revision Summary
10/22/2021 Version 2021.2
Entire section	No changes to this section.
08/05/2021 Version 2021.1
set_directive_inline set_directive_interface pragma HLS inline	Updated Sections
06/16/2021 Version 2021.1
cosim_design get_project get_solution list_part config_array_partition config_compile config_export config_interface config_op config_storage set_directive_aggregate set_directive_array_partition set_directive_array_reshape set_directive_bind_op set_directive_bind_storage set_directive_dependence set_directive_disaggregate set_directive_function_instantiate set_directive_interface set_directive_pipeline set_directive_stream pragma HLS aggregate pragma HLS alias pragma HLS array_partition pragma HLS array_reshape pragma HLS bind_op pragma HLS bind_storage pragma HLS dependence pragma HLS disaggregate pragma HLS interface pragma HLS pipeline pragma HLS protocol pragma HLS stream	Minor Updates

The following table shows the revision history for Vitis HLS Libraries Reference.

Section	Revision Summary
10/22/2021 Version 2021.2
Entire section	No changes to this section.
08/05/2021 Version 2021.1
Entire section	No changes to this section.
06/16/2021 Version 2021.1
Vitis HLS Libraries Reference: C++ Arbitrary Precision Fixed-Point Types HLS Stream Library FFT IP Library	Minor Updates

The following table shows the revision history for Vitis HLS Migration Guide.

Section	Revision Summary
10/22/2021 Version 2021.2
Deprecated and Unsupported Features	Minor Update
08/05/2021 Version 2021.1
Entire section	No changes to this section.
06/16/2021 Version 2021.1
Migrating to Vitis HLS HLS Behavioral Differences Structs Interface Bundle Rules Behavior Changes to Module Names and Module Prefix Default User Control Settings Top-Level Function Argument Deprecated and Unsupported Features	Minor Updates