# What’s new? (Upgrade Guide)

{% hint style="info" %}
Version 2.0.0 is a major architectural rewrite. Please note that it is NOT directly compatible with prior versions. 
{% endhint %}

{% content-ref url="whats-new-upgrade-guide/upgrade-guide-1.x-2.0.0" %}
[upgrade-guide-1.x-2.0.0](https://megacrush.gitbook.io/megacrush-unity-assets/runtime-spawner/runtime-spawner-user-manual/whats-new-upgrade-guide/upgrade-guide-1.x-2.0.0)
{% endcontent-ref %}

{% content-ref url="whats-new-upgrade-guide/upgrade-guide-1.5.1-1.6.0" %}
[upgrade-guide-1.5.1-1.6.0](https://megacrush.gitbook.io/megacrush-unity-assets/runtime-spawner/runtime-spawner-user-manual/whats-new-upgrade-guide/upgrade-guide-1.5.1-1.6.0)
{% endcontent-ref %}

{% content-ref url="whats-new-upgrade-guide/upgrading-from-1.4.x-1.5.0" %}
[upgrading-from-1.4.x-1.5.0](https://megacrush.gitbook.io/megacrush-unity-assets/runtime-spawner/runtime-spawner-user-manual/whats-new-upgrade-guide/upgrading-from-1.4.x-1.5.0)
{% endcontent-ref %}

{% content-ref url="whats-new-upgrade-guide/upgrading-from-1.3.x-1.4.0" %}
[upgrading-from-1.3.x-1.4.0](https://megacrush.gitbook.io/megacrush-unity-assets/runtime-spawner/runtime-spawner-user-manual/whats-new-upgrade-guide/upgrading-from-1.3.x-1.4.0)
{% endcontent-ref %}

{% content-ref url="whats-new-upgrade-guide/upgrading-from-1.2.x-1.3.0" %}
[upgrading-from-1.2.x-1.3.0](https://megacrush.gitbook.io/megacrush-unity-assets/runtime-spawner/runtime-spawner-user-manual/whats-new-upgrade-guide/upgrading-from-1.2.x-1.3.0)
{% endcontent-ref %}