The Sony a7c could possibly face the end of life. It's not uncommon for Sony to provide quick refreshes given their history.
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Sony a7C II Review
Camera Review: Sony A7c – Part 2. First Impressions and A7III Comparison. – Eric L. Woods
My Theory on Why I Think This is the End of the Sony a7c
Why I am using a Sony A7C for my cycling photography — rik de voogd