As of today, cynosural field generators can be attached to fewer ships than before in order to make dropping into a fight a tactical choice instead of the standard rules of engagement. Industrial ships, blockade runners, and deep space frigates that relied on these fields to safely traverse the more dangerous parts of space will still get to do so with the introduction of a new industrial cyno field generator, which should make space trucking slightly less awful as a result of these changes.
Content retrieved from: https://massivelyop.com/2019/09/10/eve-online-changes-the-rules-for-cyno-field-fitting-and-makes-prettier-wormholes-in-the-september-update/.