Fact check: When fontaine 4.0 was released in genshin, did it include the underwater prison?

1. Summary of the results

Based on the available analyses, while Fontaine 4.0 did introduce underwater exploration mechanics ^{[1] [2]}, none of the sources specifically mention or confirm the existence of an underwater prison. The update was released on August 16, 2023 ^[2], and included diving mechanics and underwater combat systems ^[3].

2. Missing context/alternative viewpoints

The original question overlooks several important aspects of Fontaine 4.0's underwater features:

• The update introduced comprehensive underwater exploration mechanics ^[1]
• Players gained the ability to engage in underwater combat ^[3]
• The region came with multiple underwater areas to explore ^[4]
• The update included new characters and gameplay features beyond just underwater exploration ^[5]

3. Potential misinformation/bias in the original statement

The question assumes the existence of an underwater prison, which is not supported by any of the provided sources. This could stem from:

• Possible confusion with other underwater areas in the region, as Fontaine does feature multiple underwater locations ^[4]
• Mixing up pre-release speculation with actual content
• Community rumors or unofficial sources

It's worth noting that while the sources provide detailed information about Fontaine's underwater features ^{[1] [3]}, they focus on exploration and combat mechanics rather than specific locations. If an underwater prison exists, it may have been added in a later update not covered by these sources.