Slack 宣佈了漲價的計畫：「Everything you need to know about our first price change and plan updates」。
從今年九月開始漲價，Pro 的月費從 US$8 漲到 US$8.75 (+9.375%)，年費從 US$80 漲到 US$87 (+8.75%)：
On September 1, 2022, monthly Pro plans will increase from $8 USD to $8.75 USD per user per month, and annual Pro plans will increase from $6.67 USD to $7.25 USD per user per month (pricing for other countries is available here).
現有用戶有一次用原價 renew 一年的機會：
Current customers on an annual Pro plan can lock in the existing annual rate of $6.67 USD per user per month for another year by early-renewing the annual Pro plan before September 1.
看起來八月底得來刷一下了...