update license, migrate-to-v0.8 page

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2019-2023 InSysBio LLC
+   Copyright 2019-2024 Heta project
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.md

@@ -13,7 +13,7 @@
 
 To read the full documentation, visit the Heta project homepage: <https://hetalang.github.io/#/heta-compiler/>.
 
-See also [Migrate to v0.6](./migrate-to-v0.6) and [Migrate to 0.7](./migrate-to-v0.7).
+See also [Migrate to v0.6](./migrate-to-v0.6), [Migrate to 0.7](./migrate-to-v0.7), [Migrate to 0.8](./migrate-to-v0.8).
 
 ## Table of contents
 
@@ -218,4 +218,4 @@ The original author of the project is [Evgeny Metelkin](https://github.com/metel
 
 - In 2020 the tool was renamed to **Heta compiler** and published as a Free Open Source project on [GitHub](https://GitHub.com/hetalang/heta-compiler) under Apache 2.0 license. Since then Heta compiler has been developed in the framework of [Heta project](https://hetalang.github.io/).
 
-Copyright 2019-2023, InSysBio LLC
+Copyright 2019-2024, Heta project

migrate-to-v0.7.md

@@ -2,7 +2,7 @@
 
 Heta compiler of **version 0.7** follows the [Heta standard](/specifications/) of **version 0.4.4**.
 
-To use the newer Heta compiler you should make some updates to thee platform files. To see the other updates see [change log](./CHANGELOG).
+To use the newer Heta compiler you should make some updates to the platform files. To see the other updates see [change log](./CHANGELOG).
 
 See also [Migrate to v0.6](./migrate-to-v0.6).
 

migrate-to-v0.8.md

@@ -0,0 +1,73 @@
+# Migrate from v0.7 to v0.8
+
+Heta compiler of **version 0.8** follows the [Heta standard](/specifications/) of **version 0.4.5**.
+
+To use the newer Heta compiler you should make some updates to the platform files. To see the other updates see [change log](./CHANGELOG).
+
+See also [Migrate to v0.6](./migrate-to-v0.6), [Migrate to v0.7](./migrate-to-v0.7).
+
+## Changes in core mathematical functions
+
+The most critical changes in heta-compiler refers to list of supported mathematical functions.
+It follows the new Heta standard v0.4.5, see details [here](https://hetalang.github.io/#/specifications/math?id=list-of-functions). 
+
+### Update of units check
+
+The new version extends checking units of measurements, namely it checks units consintency not only in left and right sides of expressions but also in ODEs which will be producesed after compilation.
+
+## Update modeling code
+
+1. **Check** that your platform can be build without errors in the current builder v0.7.x.
+
+    *If you use Git you should commit the latest changes before updating formats.*
+
+1. Install the latest version of **Heta compiler**.
+
+    ```bash
+    npm install -g heta-compiler
+    heta -v
+    # must be v0.8.0 or newer
+    ```
+1. If you use declaration file **platform.json** update the property to `builderVersion: ^0.7.0`.
+
+    ```json
+    {
+        "builderVersion": "^0.8.0",
+        "id": "my-platform",
+        "notes": "platform notes",
+        "version": "v0.1.0",
+        ...
+    }
+    ```
+
+1. Check if you use the mathematical functions which change their rules and update the code based on the list.
+
+- `log(x, b)` => `logbase(x, b)` Only for two argument version
+- `nthRoot(x)` => `sqrt(x)` Only for one argument version
+
+1. Check if you use the mathematical functions which currently is not supported and add `#defineFunction` to support them.
+
+__List of unsupported functions__
+
+`acosh(x)`, `acoth(x)`, `acsch(x)`, `asech(x)`, `asinh(x)`, `atanh(x)`, `cosh(x)`, `coth(x)`, `csch(x)`, `sech(x)`, `sinh(x)`, `tanh(x)`
+
+__Example:__
+
+Old code
+```heta
+x1 := 15 * sinh(l1);
+```
+
+New code
+```heta
+#defineFunction sinh {
+    arguments: [x],
+    math: "(exp(x) - exp(-x)) / 2"
+};
+
+x1 := 15 * sinh(l1);
+```
+
+1. Run build to check units consistency and fix if necessary.
+
+1. Check building with `heta build` and make a commit if you use git.